Perhaps you should try some spelling variations:
bang thanh » ban thanh, dang thanh, tang thanh
thong dong » thong duong, thuong dong, thong cong
hieu lang » chieu sang, hieu quang, nhieu tang
dong bang » dong san
thanh tai » thanh hai, thanh toan, doanh tai
tranh va » tranh van, trang va, thanh va
trinh va » trinh van, trinh vat, trinh ve
ho hieu » ho chieu, hoi hieu, nho hieu

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 - canh ((tranh va) or (trinh va)) thong dong bang thanh tai~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho hieu lang - canh ((tranh va) OR (trinh va)) thong dong bang thanh tai.
• Adding a wildcard symbol may retrieve word variants: ho hieu lang - canh ((tranh va) or (trinh va)) thong dong bang thanh tai*.