Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hoc thieu » toc thieu, hoc hien
toan xuan » tran xuan, toan luan, doan xuan
toan quan » tran quang, doan quang, van quan
theo chu » theo chieu, cho chu, chao chu
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
toan tap » toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc thieu) or (theo chu)) xanh - tinh ((toan xuan) or (toan quan)) nhung cong tac toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thieu) OR (theo chu)) xanh - tinh ((toan xuan) OR (toan quan)) nhung cong tac toan tap.
• Adding a wildcard symbol may retrieve word variants: ((hoc thieu) or (theo chu)) xanh - tinh ((toan xuan) or (toan quan)) nhung cong tac toan tap*.