Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hoc thieu » toc thieu, hoc hien
doi chieu » doc hieu, ho chieu, mot chieu
tranh cua » doanh cua, manh cua
cua nhung » va nhung
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
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: ((hoc thieu) or (((doi chieu) OR (doi chi)))) xanh - canh tranh cua nhung cong tac toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thieu) OR (((doi chieu) OR (doi chi)))) xanh - canh tranh cua nhung cong tac toan cao*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc thieu) or (((doi chieu) OR (doi chi)))) xanh - canh tranh cua nhung cong tac toan cao*".