Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
cua nhung » va nhung
doc hieu » toc thieu, hoc thieu
anh hang » anh hoang, anh hung, anh bang
hang cua » mang cua, hang ca, huong cua
cong tac » cong ty
tac phan » tac pham, tai phan, tac phat
phan cau » phan dau, phan cac, phan tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((doc hieu) or (hoc hien)) manh - anh hang cua nhung cong tac phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doc hieu) OR (hoc hien)) manh - anh hang cua nhung cong tac phan cau.
• Adding a wildcard symbol may retrieve word variants: ((doc hieu) or (hoc hien)) manh - anh hang cua nhung cong tac phan cau*.