Perhaps you should try some spelling variations:
nhanh tinh » nhanh thanh, hanh trinh
chat nhung » chat ngung, thuat nhung, cua nhung
nhung cong » dung cong, thong cong, hang cong
toc chieu » toc thieu, doc hieu, doi chieu
hoc thieu » toc thieu, hoc hien
cong tac » cong ty
tac toan » tap toan, tam toan, hach 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: ((toc chieu) or (hoc thieu)) xanh - ((nhanh tinh) or (nhan sinh)) chat nhung cong tac toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((toc chieu) OR (hoc thieu)) xanh - ((nhanh tinh) OR (nhan sinh)) chat nhung cong tac toan cau.
• Adding a wildcard symbol may retrieve word variants: ((toc chieu) or (hoc thieu)) xanh - ((nhanh tinh) or (nhan sinh)) chat nhung cong tac toan cau*.