Perhaps you should try some spelling variations:
hoc nhiet » hoc thiet, hoc nghien, hoc hien
hop nhieu » hoc thieu, ho chieu, he nhieu
hanh tang » hanh trang, anh tang, hanh tung
hanh mang » nhanh mang, hanh trang, nhanh lang
bang cong » dang cong, bang song, hang cong
cua bang » chua bang, cua ban, cua dang
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
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 nhiet) or (hop nhieu)) tang - ((hanh tang) or (hanh mang)) cua bang cong tan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc nhiet) OR (hop nhieu)) tang - ((hanh tang) OR (hanh mang)) cua bang cong tan toan cau.
• Adding a wildcard symbol may retrieve word variants: ((hoc nhiet) or (hop nhieu)) tang - ((hanh tang) or (hanh mang)) cua bang cong tan toan cau*.