Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
hieu van » hieu va, thien van, lieu va
van chat » cao chat
chat xuc » chat huu, cam xuc, chao xu
van hanh » ban hanh, van anh, van ban
tu sach » thu sach, su sach, te sach
sinh va » sinh vat, tinh va, dinh van
y nang » ly nang, v nang, may nang
va tre » va trien

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 ((y nang) or (ky nang)) xa hoi. hieu van chat xuc ((van hanh) or (van thanh)) sinh va tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ((y nang) OR (ky nang)) xa hoi. hieu van chat xuc ((van hanh) OR (van thanh)) sinh va tre.
• Adding a wildcard symbol may retrieve word variants: tu sach ((y nang) or (ky nang)) xa hoi. hieu van chat xuc ((van hanh) or (van thanh)) sinh va tre*.