Perhaps you should try some spelling variations:
thanh trung » thanh tung
nhung cong » dung cong, thong cong, hang cong
trung cua » truong cua, trung tuan, trung cap
cua nhung » va nhung
vien cac » vien bach, vien dai, vien da
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van 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 ((vien cac) or (lieu va)) - thanh trung cua nhung cong tan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((vien cac) OR (lieu va)) - thanh trung cua nhung cong tan toan cau.
• Adding a wildcard symbol may retrieve word variants: hoc ((vien cac) or (lieu va)) - thanh trung cua nhung cong tan toan cau*.