Perhaps you should try some spelling variations:
thuat tinh » thuat trinh, thuat kinh, thuat hinh
luan nhung » luan chung, luan hung, quan nhung
nhung cong » dung cong, thong cong, hang cong
chua tinh » cua tinh, cha tinh, chua benh
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((chua tinh) or (thuat tinh)) - sach dung luan nhung cong tac toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chua tinh) OR (thuat tinh)) - sach dung luan nhung cong tac toan ban.
• Adding a wildcard symbol may retrieve word variants: ho ((chua tinh) or (thuat tinh)) - sach dung luan nhung cong tac toan ban*.