Perhaps you should try some spelling variations:
tinh dung » trinh dung, tin dung, tinh quang
dai thieu » dai tieu, cai thien, dao hieu
viet soat » kiem soat, viet dat, viet hoan
dung thi » dung tai, dung tri, dung chi
dung hoc » dong hoc, dung thuoc, trung hoc
hoc viet » hoc hien
thi dai » thoi dai, thi mai, thi hai
binh ap » binh ai, binh phap, binh dan
ap dung » xay dung, van dung

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 thi dai thieu so ) or ( binh ap dung hoc viet soat ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tinh dung thi dai thieu so ) OR ( binh ap dung hoc viet soat )).
• Adding a wildcard symbol may retrieve word variants: (( tinh dung thi dai thieu so ) or ( binh ap dung hoc viet soat ))*.