Perhaps you should try some spelling variations:
thanh tung » thanh cong
dung cong » dung trong
khi sach » khi sac, khoa sach, khau sach
tung vat » dung vat, tang vat, tung va
vat dung » van dung, va dung, viet dung
cong van » cong vang, cong san, song van
than cau » phan cau, than cap, thanh chau
toan cau » toan cao, toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi khi sach - thanh tung vat dung cong van ((than cau) or (toan cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi khi sach - thanh tung vat dung cong van ((than cau) OR (toan cau)).
• Adding a wildcard symbol may retrieve word variants: doi khi sach - thanh tung vat dung cong van ((than cau) or (toan cau))*.