Perhaps you should try some spelling variations:
quan nhung » qua nhung, cua nhung, luan chung
hanh tang » hanh trang, anh tang, hanh mang
tang quan » tang luan, nang quan, tong quan
theo chu » theo chieu, cho chu, chao chu
chu manh » ho manh, chu han, chu van
cong tac » cong ty
toan cau » toan cao, toan ban, toan tap

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 manh - hanh tang quan nhung ((cong san) or (cong tac)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chu manh - hanh tang quan nhung ((cong san) OR (cong tac)) toan cau.
• Adding a wildcard symbol may retrieve word variants: theo chu manh - hanh tang quan nhung ((cong san) or (cong tac)) toan cau*.