Perhaps you should try some spelling variations:
chat tuc » luat tuc, chat huu, chat cua
thu sach » thuat sach, thuoc sach, thu hoach
van dinh » van minh, van dich, va dinh
chat xuc » chat huu, cam xuc, chao xu
hieu van » hieu va, thien van, lieu va
dinh vi » dinh ve, dinh viet, dinh tri
tu sach » su sach, te sach, tu cach
nang xa » nang x, lang xa, nang ma
ty nang » ky nang, ty xang, ty hang
lua tre » cua tre, luy tre, dua tren
vi lua » vi luu

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 (thu sach)) ty nang xa hoi. hieu van ((chat tuc) or (chat xuc)) van dinh vi lua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (thu sach)) ty nang xa hoi. hieu van ((chat tuc) OR (chat xuc)) van dinh vi lua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) OR (thu sach)) ty nang xa hoi. hieu van ((chat tuc) or (chat xuc)) van dinh vi lua tre".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) OR (thu sach)) ty nang xa hoi. hieu van ((chat tuc) or (chat xuc)) van dinh vi lua tre*.