Perhaps you should try some spelling variations:
thuat tach » thuat mach, thuat tac, thuat thanh
thuat sach » thuat lanh, thuat san
hanh dung » thanh dung, anh dung, hanh dong
dung phan » dung nhan, dung luan, dung ha
phan dung » phan ung, phan dang, chan dung
dung cong » dung trong
cong toan » cong tan, cong hoan, cong tuan
toan pha » toan phan, toan phai, toan nha
pha tap » pham tai

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((thuat tach) or (thuat sach)) - hanh dung phan dung cong toan pha tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thuat tach) OR (thuat sach)) - hanh dung phan dung cong toan pha tap*.