Perhaps you should try some spelling variations:
thanh luc » thanh luu, than luc, nhan luc
toc sach » hoc sach, doc sach, thuoc sach
hieu van » hieu va, thien van, hieu ve
van hanh » van thanh, ban hanh, van anh
nang xa » nang x, lang xa, nang ma
va hanh » va thanh, va danh, ban hanh
vai cua » dai cua, hai cua, lai cua
sach 2 » sach y
2 nang » v nang
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc sach 2 nang xa hoi. ((hieu van) OR (lieu va)) thanh luc ((va hanh) or (van hanh)) vai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach 2 nang xa hoi. ((hieu van) OR (lieu va)) thanh luc ((va hanh) OR (van hanh)) vai cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc sach 2 nang xa hoi. ((hieu van) OR (lieu va)) thanh luc ((va hanh) or (van hanh)) vai cua te".
• Adding a wildcard symbol may retrieve word variants: toc sach 2 nang xa hoi. ((hieu van) OR (lieu va)) thanh luc ((va hanh) or (van hanh)) vai cua te*.