Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hanh trang » thanh trung, canh tranh, hanh trinh
hoc thieu » toc thieu
trang cua » tranh cua, tang cua, trung cua
cua nhung » va nhung
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
toan cau » toan cao, toan ban, toan tap
doi chi » doi khi

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((doi chi) or (((hoc thieu) or (hoc hien)))) sang - hanh trang cua nhung cong tac toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chi) OR (((hoc thieu) OR (hoc hien)))) sang - hanh trang cua nhung cong tac toan cau.
• Adding a wildcard symbol may retrieve word variants: ((doi chi) or (((hoc thieu) or (hoc hien)))) sang - hanh trang cua nhung cong tac toan cau*.