Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
hien manh » hien hanh, tien manh, hieu manh
hang cong » dang cong, hang nong, bang cong
chinh can » chinh ca, chinh ban, chinh cau
trinh va » trinh van, trinh vat, trinh ve
cong dan » cong san, cong tan, huong dan
phan cau » phan dau, phan cac, phan tu
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 hien manh - hanh trinh va hang cong dan ((phan cau) or (chinh can))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien manh - hanh trinh va hang cong dan ((phan cau) OR (chinh can)).
• Adding a wildcard symbol may retrieve word variants: hoc hien manh - hanh trinh va hang cong dan ((phan cau) or (chinh can))*.