Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
chau tinh » cuu tinh, ha tinh, cua tinh
trung ha » trung hoc, trung tam, trung cap
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
toan cau » toan cao, toan ban, toan tap
ho chau » ha chau, ho chu, o chau

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chau tinh - hanh ((trung ha) or (((truong cao) OR (truong dai)))) nhung cong tan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chau tinh - hanh ((trung ha) OR (((truong cao) OR (truong dai)))) nhung cong tan toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chau tinh - hanh ((trung ha) or (((truong cao) OR (truong dai)))) nhung cong tan toan cau".
• Adding a wildcard symbol may retrieve word variants: ho chau tinh - hanh ((trung ha) or (((truong cao) OR (truong dai)))) nhung cong tan toan cau*.