Perhaps you should try some spelling variations:
thanh tung » thanh cong
phan xuong » phan cong
hieu lang » chieu sang, hieu quang, nhieu tang
cap thong » cap tong, chap thuong, phap thong
cong san » cong tac
ho hieu » ho chieu, hoi hieu, nho hieu
san can » san van, ban can, san chang
can cau » van cau, ban cau, ca cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho hieu lang - ((thanh trung) or (thanh tung)) ((cap thong) or (phan xuong)) cong san can cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho hieu lang - ((thanh trung) OR (thanh tung)) ((cap thong) OR (phan xuong)) cong san can cau.
• Adding a wildcard symbol may retrieve word variants: ho hieu lang - ((thanh trung) or (thanh tung)) ((cap thong) or (phan xuong)) cong san can cau*.