Perhaps you should try some spelling variations:
hieu xanh » chieu xanh, hieu manh, hieu nganh
hanh manh » hanh mang, lanh manh, hoang manh
cua trong » cua truong, cua trung, qua trong
doc hieu » toc thieu, hoc thieu, hoc hien
manh cua » doanh cua, ban cua
cong tan » cong tac, cong san, cong thanh
tran cao » tran chau, trang cho, tranh cac
toan cao » toan ban, toan tap

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