Perhaps you should try some spelling variations:
sach tranh » canh tranh
tranh trai » trang trai, tranh thai, trang tri
danh thanh » dinh thanh, dang thanh, nhanh thanh
thanh tai » thanh hai, thanh toan, doanh tai
thanh tra » thanh toan, thanh hoa
tu thanh » thu thanh, su thanh, ta thanh
su sach » so sach, vu sach
tu hanh » du hanh, lu hanh, thuc hanh
te danh » le danh, tac danh

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( su sach tranh trai ) or ((( ((tu thanh) or (tu hanh)) thanh tai ) or ( te danh thanh tra ))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( su sach tranh trai ) OR ((( ((tu thanh) OR (tu hanh)) thanh tai ) OR ( te danh thanh tra )))).
• Adding a wildcard symbol may retrieve word variants: (( su sach tranh trai ) or ((( ((tu thanh) or (tu hanh)) thanh tai ) or ( te danh thanh tra ))))*.