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
doan vi » doan va, don vi, doan thi
va doan » va doanh, van doan, va dan
vi cua » vai cua, di cua
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 tai » te tai, de tai, le tai

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