Perhaps you should try some spelling variations:
phan cong » thanh cong
toc sach » hoc sach, doc sach, thuoc sach
thai tuc » thai thuc, thai thuy, thai hoc
hoa phan » hoa dan, co phan
tu sach » thu sach, su sach, te sach
tuc cac » tu cac, tich cac
cac hoa » cac hoat, cac khoa, cau hoa

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu sach) or (toc sach)) thai tuc cac hoa phan cong~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (toc sach)) thai tuc cac hoa phan cong*.