Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
van hanh » van thanh, ban hanh, van anh
chat tuc » chat xuc, luat tuc, chat huu
cua tre » cua te, cua triet, dua tren
tuc van » thuc van, truc van, tuc va
ve chat » va chat, van chat
hieu ve » hieu va, hieu van
su sach » so sach, vu sach
cuu tre » cau tren, cau treo
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((thuat sach) or (su sach)) ky nang x hoi. hieu ve chat tuc van hanh vi ((cua tre) or (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thuat sach) OR (su sach)) ky nang x hoi. hieu ve chat tuc van hanh vi ((cua tre) OR (cuu tre)).
• Adding a wildcard symbol may retrieve word variants: ((thuat sach) or (su sach)) ky nang x hoi. hieu ve chat tuc van hanh vi ((cua tre) or (cuu tre))*.