Perhaps you should try some spelling variations:
thien hoat » trien hoat, thien thuat, tien hoa
tinh dung » trinh dung, tin dung, tinh quang
dung land » dung luan, dung lam, dung san
hieu luat » hieu qua
kiem soat » kiem toan
land van » lang van, lan van, luan van
van hieu » cao hieu
binh ban » binh dan, binh tan, binh han
ban quan » van quan
quan van » luan van, quan va, quan luan

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( tinh dung land van hieu luat ) or ( binh ban quan van ((thien hoat) or (kiem soat)) ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tinh dung land van hieu luat ) OR ( binh ban quan van ((thien hoat) OR (kiem soat)) )).
• Adding a wildcard symbol may retrieve word variants: (( tinh dung land van hieu luat ) or ( binh ban quan van ((thien hoat) or (kiem soat)) ))*.