Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
nhung cong » dung cong, thong cong, hang cong
doi chieu » doc hieu, doi chi, ho chieu
chinh cua » chinh ca, chinh sua, chinh luan
hinh cua » sinh cua, tinh cua, dinh cua
cong tac » cong ty
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chieu tinh - hanh ((chinh cua) or (hinh cua)) nhung cong tac ((toan ban) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu tinh - hanh ((chinh cua) OR (hinh cua)) nhung cong tac ((toan ban) OR (toan tap)).
• Adding a wildcard symbol may retrieve word variants: doi chieu tinh - hanh ((chinh cua) or (hinh cua)) nhung cong tac ((toan ban) or (toan tap))*.