Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trinh, hanh trang
hieu xanh » chieu xanh, hieu manh, hieu nganh
tranh cua » doanh cua, manh cua
doc hieu » toc thieu, hoc thieu, hoc hien
nhung bo » nhung bi, nhung bai, nhung don
tran cao » toan cao, tran chau, trang cho
trang o » trang va

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 xanh - hanh tranh cua ((nhung bo) or (trong cong)) tan ((tran cao) or (trang o))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc hieu xanh - hanh tranh cua ((nhung bo) OR (trong cong)) tan ((tran cao) OR (trang o)).
• Adding a wildcard symbol may retrieve word variants: doc hieu xanh - hanh tranh cua ((nhung bo) or (trong cong)) tan ((tran cao) or (trang o))*.