Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hoc thieu » toc thieu, hoc hien
trung cua » truong cua, trung tuan, dung cua
trung cap » truong cao, trung tam
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
toan tap » toan ban

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi khi) OR (hoc thieu)) xanh - thanh ((trung cua) OR (trung cap)) nhung cong tan toan tap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doi khi) or (hoc thieu)) xanh - thanh ((trung cua) OR (trung cap)) nhung cong tan toan tap~".
• Adding a wildcard symbol may retrieve word variants: ((doi khi) or (hoc thieu)) xanh - thanh ((trung cua) OR (trung cap)) nhung cong tan toan tap*.