Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
chieu tinh » trieu tinh, lieu tinh, chau tinh
toan thuc » toan hoc, dan thuc, nhan thuc
hung cong » hung cuong, phung cong, dung cong
than phan » thanh phan, toan phan, thanh pham
ho chieu » theo chieu, hoc thieu, mot chieu
phan cac » nhan cach, phan dau, phan lap

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chieu tinh - tinh toan thuc ((hung cong) or (nhung cong)) than phan cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu tinh - tinh toan thuc ((hung cong) OR (nhung cong)) than phan cac.
• Adding a wildcard symbol may retrieve word variants: ho chieu tinh - tinh toan thuc ((hung cong) or (nhung cong)) than phan cac*.