Perhaps you should try some spelling variations:
thieu quang » thien quan, trien quang, hieu quan
hieu quang » hieu quan, hieu qua, diep quang
luong cong » dung cong, trong cong, cong cong
ganh nang » anh nang, nganh nong, van nang
duc luong » duc cuong, duc long, du luong
nang duc » nang luc, nang doc, nang du
cong tan » cong tac, cong san, cong thanh
tan chan » dan chan, ban chan, can chan
chan dau » phan dau, han dau, chan doan

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

• Performing a fuzzy search may retrieve terms with similar spellings: nha ((hieu quang) or (thieu quang)) - ganh nang duc luong cong tan chan dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: nha ((hieu quang) OR (thieu quang)) - ganh nang duc luong cong tan chan dau*.