Perhaps you should try some spelling variations:
trong thuc » trong thu, thuong thuc, trong thuat
trien hoat » tien hoa
tinh dung » trinh dung, tin dung, tinh quang
thuc hieu » thuc hien, thu hien, thuc tien
hieu luat » hieu qua
tinh quan » tinh quang, trinh quan, tin quan
van trien » van tien, va trien, van tren
luan » lan

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 trong thuc hieu luat ) or ( tinh quan luan van trien hoat ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tinh dung trong thuc hieu luat ) OR ( tinh quan luan van trien hoat )).
• Adding a wildcard symbol may retrieve word variants: (( tinh dung trong thuc hieu luat ) or ( tinh quan luan van trien hoat ))*.