Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
doi chieu » doc hieu, doi chi, mot chieu
hoc thieu » toc thieu, hoc hien
hanh tang » hanh trang, anh tang, hanh mang
cua nhung » va nhung
ho chieu » theo chieu, mot chieu, thi chieu
tang cua » mang cua, hang cua, tang luan
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.

• If you are trying to use Boolean operators, they must be ALL CAPS: ((((ho chieu) OR (doi chieu))) OR (hoc thieu)) xanh - hanh tang cua nhung cong tac toan cau~.
• Adding a wildcard symbol may retrieve word variants: ((((ho chieu) or (doi chieu))) or (hoc thieu)) xanh - hanh tang cua nhung cong tac toan cau*.