Perhaps you should try some spelling variations:
trong thuat » trong hoat, trong thu, trong thuc
trong phat » trong nha, trong hoat
cong cong » cong dong, trong cong, dung cong
ban thanh » ban hanh, ban hang
thanh cau » thanh chau, thanh mau, nhanh cau
toc sach » hoc sach, doc sach, thuoc sach
cong ban » cong bang, cong san, cong tan

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((te sach) or (toc sach)) - canh ((trong thuat) OR (trong phat)) cong cong ban thanh cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((te sach) OR (toc sach)) - canh ((trong thuat) OR (trong phat)) cong cong ban thanh cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((te sach) or (toc sach)) - canh ((trong thuat) OR (trong phat)) cong cong ban thanh cau".
• Adding a wildcard symbol may retrieve word variants: theo ((te sach) or (toc sach)) - canh ((trong thuat) OR (trong phat)) cong cong ban thanh cau*.