Perhaps you should try some spelling variations:
hien soat » thien hoat, kiem soat, bien soan
van hien » van hieu, van tien
dung dam » dung dat, dung lam, dung dan
van kien » van tien, van chien, van hieu
kien hoa » dien hoa, tien hoa, kien ha
dam van » dao van, nam van, pham van
tin » tinh
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: (( tin dung luan van hien soat ) or ( trinh dung dam van kien hoa ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tin dung luan van hien soat ) OR ( trinh dung dam van kien hoa ))*.