Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hanh trinh » canh tranh, hanh chinh
tien manh » tien anh, tien thanh, tieng anh
trinh van » trinh han, trinh quan, trinh toan
van nhung » van nhuong, va nhung, van hung
chinh cau » chinh chau, chinh ca, chinh can
hoc tien » hoc tieng, hoc hien, hoc vien
cong dan » cong san, cong tan, huong dan
chan cau » phan cau, can cau, nhanh cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc tien manh - hanh trinh van nhung cong dan ((chan cau) or (chinh cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc tien manh - hanh trinh van nhung cong dan ((chan cau) OR (chinh cau)).
• Adding a wildcard symbol may retrieve word variants: hoc tien manh - hanh trinh van nhung cong dan ((chan cau) or (chinh cau))*.