Perhaps you should try some spelling variations:
trinh quan » tinh quang, trinh luat, trinh han
hanh trinh » canh tranh, hanh chinh
theo chu » theo chieu, cho chu, chao chu
quan van » luan van, quan va, quan luan
van cong » van dong, van phong, phan cong
cong van » cong vang, cong san, song van
van toan » van tuan, van tan, van 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 hien) or (theo chu)) xanh - hanh trinh quan van cong van toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc hien) OR (theo chu)) xanh - hanh trinh quan van cong van toan ban.
• Adding a wildcard symbol may retrieve word variants: ((hoc hien) or (theo chu)) xanh - hanh trinh quan van cong van toan ban*.