Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
trinh quan » tinh quang, trinh luat, trinh han
quan nhung » qua nhung, cua nhung, luan chung
hoc kien » hoc hien, hoc vien, hoa kien
kien mac » dien mao, tien mai, kien ha
cong tan » cong tac, cong san, cong thanh
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 kien mac - hanh trinh quan nhung ((cong tan) or (huong dan)) toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc kien mac - hanh trinh quan nhung ((cong tan) OR (huong dan)) toan ban.
• Adding a wildcard symbol may retrieve word variants: hoc kien mac - hanh trinh quan nhung ((cong tan) or (huong dan)) toan ban*.