Perhaps you should try some spelling variations:
thien thanh » tien thanh, thi thanh, hien hanh
chung phung » nhung phuong, thung chung, chiung hung
thien hach » hien hanh
hanh trinh » canh tranh, hanh chinh
trinh luan » trinh luat, trinh quan, trinh han
luan chung » luan chinh
dien sach » dien anh
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 ((dien sach) or (((thien hach) OR (thien thanh)))) - hanh trinh luan chung phung van toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((dien sach) OR (((thien hach) OR (thien thanh)))) - hanh trinh luan chung phung van toan ban*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((dien sach) or (((thien hach) OR (thien thanh)))) - hanh trinh luan chung phung van toan ban*".