Perhaps you should try some spelling variations:
thien danh » thien anh, thien dang, thien thanh
canh trinh » canh tranh, hanh trinh, canh tinh
hieu manh » chieu xanh, hieu nganh, dieu hanh
tien manh » tien anh, tien thanh, tieng anh
hang cong » dang cong, hang nong, bang cong
trinh va » trinh van, trinh vat, trinh ve
cong san » cong tac
san quan » van quan, ban quan, dan quan
quan cau » quang cao, toan cau, quan ha
va hang » van hang, va nang, va lang

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((hieu manh) or (((thien danh) or (tien manh)))) - canh trinh va hang cong san quan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hieu manh) OR (((thien danh) OR (tien manh)))) - canh trinh va hang cong san quan cau.
• Adding a wildcard symbol may retrieve word variants: hoc ((hieu manh) or (((thien danh) or (tien manh)))) - canh trinh va hang cong san quan cau*.