Perhaps you should try some spelling variations:
chat xuc » chat huu, cam xuc, chao xu
van hanh » van thanh, ban hanh, van anh
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
lang ha » long ha
va chat » van chat, va phat, cao chat
cua tre » cua te, cuu tre, cua triet
di cua » dai cua, doi cua, de cua

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 ky ((nang xa) or (lang ha)) hoi. lieu va chat xuc ((van hanh) or (van minh)) di cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky ((nang xa) OR (lang ha)) hoi. lieu va chat xuc ((van hanh) OR (van minh)) di cua tre.
• Adding a wildcard symbol may retrieve word variants: su sach ky ((nang xa) or (lang ha)) hoi. lieu va chat xuc ((van hanh) or (van minh)) di cua tre*.