Perhaps you should try some spelling variations:
trinh chua » trinh chuan, trinh cua, trinh chu
hanh trinh » canh tranh, hanh chinh
thien anh » thien danh, tien anh, thien thanh
chua nang » chuc nang, chua xang, kha nang
nang cong » nang song, dang cong, bang cong
van than » van thanh, van thang, van phan
van tuan » van quan, van ban, anh tuan

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 (tieng anh)) - hanh trinh chua nang cong ((van than) or (van tuan)) cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thien anh) OR (tieng anh)) - hanh trinh chua nang cong ((van than) OR (van tuan)) cap.
• Adding a wildcard symbol may retrieve word variants: hoc ((thien anh) or (tieng anh)) - hanh trinh chua nang cong ((van than) or (van tuan)) cap*.