Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
va cham » va chat, va tham
nang xa » nang x, lang xa, nang ma
vi cua » vai cua, di cua
dan vi » doan vi, don vi, dan va
va dan » ca dan, va dao, va dau
tuc va » thuc va, truc va, tuc xa
cua te » cua tu
y nang » ky nang, ly nang, v nang
ve cac » va cac, vien cac
ve cai » va cai, ve tai, ve cau

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 cai) or (ve cac))) or (va cham)) tuc va dan vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach y nang xa hoi. hieu ((((ve cai) OR (ve cac))) OR (va cham)) tuc va dan vi cua te.
• Adding a wildcard symbol may retrieve word variants: thu sach y nang xa hoi. hieu ((((ve cai) or (ve cac))) or (va cham)) tuc va dan vi cua te*.