Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
chat thuc » thuat thuc, nhan thuc, chat thai
hieu van » hieu va, thien van, lieu va
van chat » cao chat
vat danh » va danh, van danh, luat danh
danh dai » danh dau, danh di, danh sai
tu sach » thu sach, su sach, te sach
nang xa » nang x, lang xa, nang ma
y nang » ky nang, ly nang, v nang
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu sach) or (thuat sach)) y nang xa hoi. hieu van chat thuc vat danh dai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (thuat sach)) y nang xa hoi. hieu van chat thuc vat danh dai cua te.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (thuat sach)) y nang xa hoi. hieu van chat thuc vat danh dai cua te*.