Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
tien manh » tien anh, tien thanh, tieng anh
hoc tien » hoc tieng, hoc hien, hoc vien
trinh va » trinh van, trinh vat, trinh ve
cong anh » cong danh, dong anh, cong thanh
hong anh » hoang anh, hong hanh, dong anh
tuan cau » toan cau, tuan cu, thuan cam
quan cau » quang cao, toan cau, quan ha

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 va nhung ((cong anh) OR (hong anh)) ((tuan cau) or (quan cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc tien manh - hanh trinh va nhung ((cong anh) OR (hong anh)) ((tuan cau) OR (quan cau)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc tien manh - hanh trinh va nhung ((cong anh) OR (hong anh)) ((tuan cau) or (quan cau))".
• Adding a wildcard symbol may retrieve word variants: hoc tien manh - hanh trinh va nhung ((cong anh) OR (hong anh)) ((tuan cau) or (quan cau))*.