Perhaps you should try some spelling variations:
trinh quan » tinh quang, trinh luat, trinh han
nhung cong » dung cong, thong cong, hang cong
tien manh » tien anh, tien thanh, tieng anh
tinh quan » tinh quang, tin quan, sinh quan
bien quan » bien quang, lien quan, vien quan
hoc tien » hoc tieng, hoc hien, hoc vien
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
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 tien manh - hanh ((((tinh quan) or (trinh quan))) or (bien quan)) nhung cong tac toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc tien manh - hanh ((((tinh quan) OR (trinh quan))) OR (bien quan)) nhung cong tac toan cau.
• Adding a wildcard symbol may retrieve word variants: hoc tien manh - hanh ((((tinh quan) or (trinh quan))) or (bien quan)) nhung cong tac toan cau*.