Perhaps you should try some spelling variations:
thanh trung » thanh tung
nhieu tang » chieu sang, nhiet nang
thang hanh » thang thanh, tang hanh, thanh thanh
hieu lang » chieu sang, hieu quang, hieu van
bang cong » dang cong, hang cong, dung cong
bang song » nang song
trung va » truong va, trang va, trung ha
hanh cac » hang cac, hanh cat, nhanh cay

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

• If you are trying to use Boolean operators, they must be ALL CAPS: nho ((hieu lang) OR (nhieu tang)) - thanh trung va ((bang cong) OR (bang song)) thang hanh cac~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "nho ((hieu lang) or (nhieu tang)) - thanh trung va ((bang cong) OR (bang song)) thang hanh cac~".
• Adding a wildcard symbol may retrieve word variants: nho ((hieu lang) or (nhieu tang)) - thanh trung va ((bang cong) OR (bang song)) thang hanh cac*.