Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
toc sach » hoc sach, doc sach, thuoc sach
tu sach » thu sach, su sach, te sach
hieu va » lieu va, hieu qua
va chao » va cao, va chat, va cham
van anh » tuan anh, van minh
ve cua » le cua, de cua, te cua
cua tu » cua tuc, cua su, cua cu
x hoi » xa hoi, o hoi, x ho

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)) ky nang x hoi. hieu va chao xu ((van anh) or (van thanh)) ve cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (toc sach)) ky nang x hoi. hieu va chao xu ((van anh) OR (van thanh)) ve cua tu.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (toc sach)) ky nang x hoi. hieu va chao xu ((van anh) or (van thanh)) ve cua tu*.