Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hoc trieu » hoc thieu, hoc tieu, hoc dieu
hanh tang » hanh trang, hanh mang, hanh tung
cua nhung » va nhung
anh tang » anh bang, anh dang, anh nang
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: ((hoc trieu) or (hoc hien)) minh - ((hanh tang) OR (anh tang)) cua nhung cong tac phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc trieu) OR (hoc hien)) minh - ((hanh tang) OR (anh tang)) cua nhung cong tac phan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc trieu) or (hoc hien)) minh - ((hanh tang) OR (anh tang)) cua nhung cong tac phan cau".
• Adding a wildcard symbol may retrieve word variants: ((hoc trieu) or (hoc hien)) minh - ((hanh tang) OR (anh tang)) cua nhung cong tac phan cau*.