Perhaps you should try some spelling variations:
chiet tach » chieu sach
hanh trinh » canh tranh, hanh chinh
hoc chiet » hoc thiet, hoc nhiet, hoc hien
cp thuong » cp huong, ca thuong, chap thuong
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
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: hoc chiet tach - hanh trinh ((cp thuong) or (va thuong)) cong dan toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chiet tach - hanh trinh ((cp thuong) OR (va thuong)) cong dan toan ban.
• Adding a wildcard symbol may retrieve word variants: hoc chiet tach - hanh trinh ((cp thuong) or (va thuong)) cong dan toan ban*.