Perhaps you should try some spelling variations:
thanh van » thanh san, thanh toan, thanh phan
hoc sach » hoc sinh, hoc cac, hoc anh
va thanh » gia thanh, ban thanh, va tinh
tang van » dang van, hoang van, trong van
va pham » van pham, va phat, va phan
va phap » va phat, ban phap
su sach » so sach, vu sach
van hoi » van hoa, van hoc, van hoe
ky tang » ky nang, ky dang, kho tang
van cua » vang cua, ban cua, dan cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((su sach) or (hoc sach)) ky tang van hoi. hieu ((va pham) OR (va phap)) duc va thanh van cua vat~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (hoc sach)) ky tang van hoi. hieu ((va pham) OR (va phap)) duc va thanh van cua vat.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) or (hoc sach)) ky tang van hoi. hieu ((va pham) OR (va phap)) duc va thanh van cua vat".
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (hoc sach)) ky tang van hoi. hieu ((va pham) OR (va phap)) duc va thanh van cua vat*.