Perhaps you should try some spelling variations:
cong thanh » dong thanh, cong trinh, truong thanh
hanh tang » hanh trang, anh tang, hanh mang
theo chu » theo chieu, chao chu, theo yeu
cong tan » cong tac, cong san, cong ty
toan cau » toan cao, toan ban, toan tap
cho chu » cho thue
tang va » trang va, tang van, thang va

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((theo chu) or (cho chu)) xanh - hanh tang va nhung ((cong tan) or (cong thanh)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chu) OR (cho chu)) xanh - hanh tang va nhung ((cong tan) OR (cong thanh)) toan cau.
• Adding a wildcard symbol may retrieve word variants: ((theo chu) or (cho chu)) xanh - hanh tang va nhung ((cong tan) or (cong thanh)) toan cau*.