Perhaps you should try some spelling variations:
van nhan » van phan, van thanh, danh nhan
nhan luc » nang luc
ban hanh » ban hang
nang xa » nang x, lang xa, nang ma
thi van » thi lan, thi hanh, thi nang
va hanh » van hanh, va thanh, va danh
cua tre » cua te, cuu tre, cua triet
sach v » sach va, sach 2, sach vay
vi cua » vai cua, di 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 v) OR (sach y)) nang xa hoi. thi van nhan luc ((va hanh) or (ban hanh)) vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su ((sach v) OR (sach y)) nang xa hoi. thi van nhan luc ((va hanh) OR (ban hanh)) vi cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su ((sach v) OR (sach y)) nang xa hoi. thi van nhan luc ((va hanh) or (ban hanh)) vi cua tre".
• Adding a wildcard symbol may retrieve word variants: su ((sach v) OR (sach y)) nang xa hoi. thi van nhan luc ((va hanh) or (ban hanh)) vi cua tre*.