Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
trung tuan » trung thanh, trung tam, tran tuan
nhung cong » dung cong, thong cong, hang cong
tang luan » dung luan
ho chieu » theo chieu, hoc thieu, doi chieu
cong san » cong tac
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: ho chieu tinh - hanh ((tang luan) or (trung tuan)) nhung cong san ((van ban) or (toan cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu tinh - hanh ((tang luan) OR (trung tuan)) nhung cong san ((van ban) OR (toan cao)).
• Adding a wildcard symbol may retrieve word variants: ho chieu tinh - hanh ((tang luan) or (trung tuan)) nhung cong san ((van ban) or (toan cao))*.