Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
nhieu tang » chieu sang, hieu lang, nhiet nang
hanh trung » thanh trung, hanh trang, manh trung
trung ha » trung hoc, trung tam, trung cap
ha nhung » hoa nhung, hay nhung, pha nhung
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: hoc ((chieu sach) or (nhieu tang)) - hanh trung ha nhung ((cong ty) or (cong tac)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu sach) OR (nhieu tang)) - hanh trung ha nhung ((cong ty) OR (cong tac)) toan cau.
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu sach) or (nhieu tang)) - hanh trung ha nhung ((cong ty) or (cong tac)) toan cau*.