Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
trinh chua » trinh chuan, trinh cua, trinh chu
thien anh » thien danh, thien thanh, thien chanh
chua xang » chua nang, chuc nang, chu bang
xang cong » dang cong, bang cong, hang cong
tien anh » tieng anh, tien manh, dien anh
dan than » dan chan, van than, dan toan
ban than » ban thanh, van thanh, ban hang

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((thien anh) or (tien anh)) - hanh trinh chua xang cong ((dan than) OR (ban than)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thien anh) OR (tien anh)) - hanh trinh chua xang cong ((dan than) OR (ban than)) cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thien anh) or (tien anh)) - hanh trinh chua xang cong ((dan than) OR (ban than)) cau".
• Adding a wildcard symbol may retrieve word variants: hoc ((thien anh) or (tien anh)) - hanh trinh chua xang cong ((dan than) OR (ban than)) cau*.