Perhaps you should try some spelling variations:
thong cong » trong cong, tong cong, thong thong
hieu lang » chieu sang, hieu quang, nhieu tang
tranh cua » doanh cua, manh cua
tang cua » mang cua, hang cua, tang luan
cong tan » cong tac, cong san, cong thanh
tran ban » tranh ban, tran van, toan ban
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 - hanh ((tang cua) or (tranh cua)) thong cong tan tran ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho hieu lang - hanh ((tang cua) OR (tranh cua)) thong cong tan tran ban.
• Adding a wildcard symbol may retrieve word variants: ho hieu lang - hanh ((tang cua) or (tranh cua)) thong cong tan tran ban*.