Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
van nhan » van phan, van thanh, danh nhan
vien cua » viec cua, dien cua, tien cua
nang xa » nang x, lang xa, nang ma
va nhan » ca nhan, va phan, va nha
y nang » ky nang, ly nang, v nang
va cao » va cac, va co, va dao
cua te » cua tu
ve co » vo co, va co, de co

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach y nang xa hoi. hieu ((ve co) or (va cao)) suc ((va nhan) OR (van nhan)) vien cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach y nang xa hoi. hieu ((ve co) OR (va cao)) suc ((va nhan) OR (van nhan)) vien cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach y nang xa hoi. hieu ((ve co) or (va cao)) suc ((va nhan) OR (van nhan)) vien cua te".
• Adding a wildcard symbol may retrieve word variants: thu sach y nang xa hoi. hieu ((ve co) or (va cao)) suc ((va nhan) OR (van nhan)) vien cua te*.