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The structure is that the letters for a word are mixed up. You then need to use all of the letters and rearrange the letters to spell a word.
The letters spell the word unique. It uses all six letters.
There is not a word that can be made with all of the letters 'loihha'. The letters will spell OH HAIL.
With all those letters there is no word that can be spelled with all of them.
The letters spell a choosy. The word uses all 6 letters.
The letters spell the word ignoble. It uses all seven letters.
The letters spell scribal. The word uses all 7 letters.
The letters spell the word forego. It uses all of the letters fergoo.
The letters spell the word observed. It uses all of the letters serdobve.
The letters spell listlessness. The word uses all 12 letters.
The letters spell cajolement. The word uses all ten letters.