Perhaps you should try some spelling variations:
cong thanh » dong thanh, cong trinh, cong tan
hanh bang » anh bang, hanh mang, lanh bang
hang cong » dang cong, hang nong, bang cong
chu nang » chua nang, cuu nang, chu bang
toan cau » toan cao, toan tap, toan tai
toan ban » van ban
bang va » hang va, ban va, trang va
va hang » van hang, va nang, va lang
chuc » thuc, chua, phuc

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 nang) or (chuc nang)) - hanh bang va hang cong thanh ((toan cau) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chu nang) OR (chuc nang)) - hanh bang va hang cong thanh ((toan cau) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: theo ((chu nang) or (chuc nang)) - hanh bang va hang cong thanh ((toan cau) or (toan ban))*.