Perhaps you should try some spelling variations:
hoc thien » hoc hien, hoc thieu, hoc tien
hoc thiet » hoc thieu, hoc thuyet, hoc hien
hanh tang » hanh trang, anh tang, hanh mang
ma thuong » va thuong, ca thuong, mach thuong
cong dan » cong san, huong dan, cong dong
cong tan » cong tac, cong san, cong thanh
toan ban » van ban
tang ma » mang may, tang van

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc thien) or (hoc thiet)) thanh - hanh tang ma thuong ((cong dan) or (cong tan)) toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thien) OR (hoc thiet)) thanh - hanh tang ma thuong ((cong dan) OR (cong tan)) toan ban.
• Adding a wildcard symbol may retrieve word variants: ((hoc thien) or (hoc thiet)) thanh - hanh tang ma thuong ((cong dan) or (cong tan)) toan ban*.