Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trinh, hanh trang
cong thanh » dong thanh, cong trinh, cong tan
hoc thieu » toc thieu
tranh cua » doanh cua, manh cua
cua dung » cua dang, cua dong, qua dung
cong san » cong tac
quan cau » quang cao, toan cau, quan ha

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc hien) or (hoc thieu)) manh - hanh tranh cua dung ((cong san) or (cong thanh)) quan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc hien) OR (hoc thieu)) manh - hanh tranh cua dung ((cong san) OR (cong thanh)) quan cau.
• Adding a wildcard symbol may retrieve word variants: ((hoc hien) or (hoc thieu)) manh - hanh tranh cua dung ((cong san) or (cong thanh)) quan cau*.