Perhaps you should try some spelling variations:
trien kinh » tri kinh, trinh kinh, trien dich
luan nhung » luan chung, luan hung, quan nhung
tien tinh » tien thinh, tien trinh, thien tinh
nang luan » tang luan, hang luan, nang quan
anh nang » ganh nang, anh bang, anh dang
cong tan » cong tac, cong san, cong thanh
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 ((tien tinh) or (trien kinh)) - anh nang luan nhung ((cong tan) or (huong dan)) toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((tien tinh) OR (trien kinh)) - anh nang luan nhung ((cong tan) OR (huong dan)) toan cao.
• Adding a wildcard symbol may retrieve word variants: hoc ((tien tinh) or (trien kinh)) - anh nang luan nhung ((cong tan) or (huong dan)) toan cao*.