Perhaps you should try some spelling variations:
khanh cat » hanh cat, hanh cac, khanh van
xa khanh » xa thanh, van khanh, dat khanh
su sach » so sach, vu sach
ly nang » ky nang, ly hang, ly vang
hieu va » lieu va, hieu qua
cac tuc » cac toc, cac tu, cac tac
cat cua » chat cua, ca cua, mat cua
cua tre » cua te, cuu tre, cua triet
y nang » ky nang, v nang, may nang

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach ((y nang) or (ly nang)) ((le hoi) or (ma hoa)). hieu va cac tuc xa khanh cat cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ((y nang) OR (ly nang)) ((le hoi) OR (ma hoa)). hieu va cac tuc xa khanh cat cua tre.
• Adding a wildcard symbol may retrieve word variants: su sach ((y nang) or (ly nang)) ((le hoi) or (ma hoa)). hieu va cac tuc xa khanh cat cua tre*.