Perhaps you should try some spelling variations:
nang luong » nang song
trung han » trung phan, trung nhan, trung van
luong vat » luong va, luong van, luong tai
trung ha » trung hoc, trung tam, trung cap
vat tuan » van tuan, va tuan, vat thanh
tuan cao » toan cao, juan cao, quang cao
theo ho » theo hop, theo bo, tho ho

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: theo ho manh - thanh ((trung han) or (trung ha)) nang luong vat tuan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ho manh - thanh ((trung han) OR (trung ha)) nang luong vat tuan cao.
• Adding a wildcard symbol may retrieve word variants: theo ho manh - thanh ((trung han) or (trung ha)) nang luong vat tuan cao*.