Perhaps you should try some spelling variations:
tien soat » trien hoat, thien hoat, kiem soat
tien soan » bien soan, tien hoang, thien toan
van tien » toan tien, van hieu, van tuan
dung dat » dung va, dung tai
san tien » san ten, sang tieng, toan tien
dat san » dac san, dam san, dat hang
luan » quan, lan

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( trinh dung luan van tien soat ) or ( trinh dung dat san tien soan ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( trinh dung luan van tien soat ) OR ( trinh dung dat san tien soan )).
• Adding a wildcard symbol may retrieve word variants: (( trinh dung luan van tien soat ) or ( trinh dung dat san tien soan ))*.