Perhaps you should try some spelling variations:
thuat tach » thuat sach, thuat mach, thuat tac
thanh dung » thanh duong, thanh tung, thanh hung
hoa thuat » hoc thuat, hoa thuan, khoi thuat
luan phan » luan van, luan hoan
phan cong » thanh cong
cong san » cong tac
thai cao » tai cao, thoai cac, thuat cao
khan cap » than cap, khoan cam, phan cac
khan ap » han ap, khan dam

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

• If you are trying to use Boolean operators, they must be ALL CAPS: hoa thuat tach - thanh dung luan phan cong san ((thai cao) OR (((khan ap) OR (khan cap))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoa thuat tach - thanh dung luan phan cong san ((thai cao) or (((khan ap) OR (khan cap))))~".
• Adding a wildcard symbol may retrieve word variants: hoa thuat tach - thanh dung luan phan cong san ((thai cao) or (((khan ap) OR (khan cap))))*.