Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hoc thieu » toc thieu, hoc hien
tranh cua » doanh cua, manh cua
cua nhung » va nhung
ho chieu » theo chieu, doi chieu, mot chieu
thi hieu » thi chieu, thi hien, thi dieu
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
toan cao » toan ban, toan tap

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((((ho chieu) OR (hoc thieu))) OR (thi hieu)) tinh - canh tranh cua nhung cong tac toan cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((ho chieu) OR (hoc thieu))) or (thi hieu)) tinh - canh tranh cua nhung cong tac toan cao~".
• Adding a wildcard symbol may retrieve word variants: ((((ho chieu) OR (hoc thieu))) or (thi hieu)) tinh - canh tranh cua nhung cong tac toan cao*.