Perhaps you should try some spelling variations:
trinh thuat » trinh luat, trinh thiet, trinh thuc
thuat nhung » thuat hung, thuat chung, thuat chuong
hanh trinh » canh tranh, hanh chinh
hoc thien » hoc hien, hoc thieu, hoc thiet
thien anh » thien danh, tien anh, thien thanh
cong tac » cong ty
toan cau » toan cao, toan ban, toan tap

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 - hanh trinh thuat nhung ((cong san) or (cong tac)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thien anh - hanh trinh thuat nhung ((cong san) OR (cong tac)) toan cau.
• Adding a wildcard symbol may retrieve word variants: hoc thien anh - hanh trinh thuat nhung ((cong san) or (cong tac)) toan cau*.