Perhaps you should try some spelling variations:
thuat tach » thuat sach, thuat mach, thuat tac
doanh hoan » doanh doanh, doanh khoa, doanh nhan
nhan nhung » nhien nhung, tham nhung, gian nhung
nhung cong » dung cong, thong cong, hang cong
hoc thuat » hoc thuyet, hoc thuc, hoc chat
hoan nhan » hoang nhan, hon nhan, hoa nhan
thanh lap » thanh san, phan lap, thanh hai
cong dan » cong san, cong tan, huong dan
than cao » toan cao, thai cao, than cap
khan cap » khan ap, than cap, khoan cam

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 - doanh hoan nhan nhung cong dan ((than cao) or (((khan cap) or (thanh lap))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thuat tach - doanh hoan nhan nhung cong dan ((than cao) OR (((khan cap) OR (thanh lap))))*.