Perhaps you should try some spelling variations:
hoc sach » hoc sinh, hoc cac, hoc anh
danh tai » doanh tai, dinh tai, hanh tai
nang xa » nang x, lang xa, nang ma
nay tuc » nay tu, cay thuc, day thuc
va danh » va dinh, va dan, va hanh
va nay » va ngay, va cay
tuc va » thuc va, truc va, tuc xa
cua te » cua tu
cua cu » cua chu, cua cau, cua su

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc sach) or (dac sac)) ky nang xa hoi. lieu va nay tuc va danh tai ((cua te) or (cua cu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc sach) OR (dac sac)) ky nang xa hoi. lieu va nay tuc va danh tai ((cua te) OR (cua cu)).
• Adding a wildcard symbol may retrieve word variants: ((hoc sach) or (dac sac)) ky nang xa hoi. lieu va nay tuc va danh tai ((cua te) or (cua cu))*.