Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
hieu cach » hieu cac, chieu sach, hieu ca
luat hang » luat hanh, luat chung, luat huong
hang cong » dang cong, hang nong, bang cong
hoc hieu » hoc thieu, hoc hien, doc hieu
cong tac » cong ty
quan cau » quang cao, toan cau, quan ha
tuan cu » tuan tu, quan cua, tuan thu

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 cach - hanh trinh luat hang cong tac ((quan cau) or (tuan cu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hieu cach - hanh trinh luat hang cong tac ((quan cau) OR (tuan cu)).
• Adding a wildcard symbol may retrieve word variants: hoc hieu cach - hanh trinh luat hang cong tac ((quan cau) or (tuan cu))*.