Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hieu manh » chieu xanh, hieu nganh, dieu hanh
thang cua » thong cua, hang cua, than cua
trung cap » truong cao, trung tam
doc hieu » toc thieu, hoc thieu, hoc hien
cong dan » cong san, cong tan, huong dan
than cau » phan cau, than cap, thanh chau
toan cau » 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 manh - hanh ((thang cua) or (trung cap)) nhung cong dan ((than cau) or (toan cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc hieu manh - hanh ((thang cua) OR (trung cap)) nhung cong dan ((than cau) OR (toan cau)).
• Adding a wildcard symbol may retrieve word variants: doc hieu manh - hanh ((thang cua) or (trung cap)) nhung cong dan ((than cau) or (toan cau))*.