Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trinh, hanh trang
hoc thieu » toc thieu, hoc hien
tranh cua » doanh cua, manh cua
dung cong » dung trong
hoc dieu » hoc hien
cua dung » cua dang, cua dong, qua dung
cong tan » cong tac, cong san, cong thanh

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc dieu) or (hoc thieu)) xanh - hanh tranh cua dung cong tan ((toan ban) or (van ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc dieu) OR (hoc thieu)) xanh - hanh tranh cua dung cong tan ((toan ban) OR (van ban)).
• Adding a wildcard symbol may retrieve word variants: ((hoc dieu) or (hoc thieu)) xanh - hanh tranh cua dung cong tan ((toan ban) or (van ban))*.