Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
viet tach » viet sach, viet tech, viet thanh
trinh cua » tinh cua, trinh luat, trinh quan
cua nhung » va nhung
toc viet » hoc viet, ngoc viet, thuc viet
cong tan » cong tac, cong san, cong thanh
toan cau » toan cao, toan ban, toan tai
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: toc viet tach - hanh trinh cua nhung ((huong dan) or (cong tan)) ((toan cau) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc viet tach - hanh trinh cua nhung ((huong dan) OR (cong tan)) ((toan cau) OR (toan tap)).
• Adding a wildcard symbol may retrieve word variants: toc viet tach - hanh trinh cua nhung ((huong dan) or (cong tan)) ((toan cau) or (toan tap))*.