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

• Performing a fuzzy search may retrieve terms with similar spellings: ((theo tieu) or (((ho chieu) or (hoc thieu)))) xanh - hanh tang cua nhung cong tac toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo tieu) OR (((ho chieu) OR (hoc thieu)))) xanh - hanh tang cua nhung cong tac toan cao.
• Adding a wildcard symbol may retrieve word variants: ((theo tieu) or (((ho chieu) or (hoc thieu)))) xanh - hanh tang cua nhung cong tac toan cao*.