Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
chieu tinh » trieu tinh, lieu tinh, chau tinh
thong cong » trong cong, tong cong, thong thong
cua thong » cua thuong, cua khong, cua tong
ho chieu » theo chieu, hoc thieu, doi chieu
anh tang » anh bang, anh dang, anh nang
cong tac » cong ty
tran cau » tran chau, toan cau, ran cau
toan tap » toan ban

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 - ((anh tang) or (hanh trinh)) cua thong cong tac ((tran cau) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu tinh - ((anh tang) OR (hanh trinh)) cua thong cong tac ((tran cau) OR (toan tap)).
• Adding a wildcard symbol may retrieve word variants: ho chieu tinh - ((anh tang) or (hanh trinh)) cua thong cong tac ((tran cau) or (toan tap))*.