Perhaps you should try some spelling variations:
sach ky » sac ky, sach y, sach ty
dan vat » dang vat, van vat, dan va
dan vai » dan va, dan tai, den vai
xuc cam » phuc cam
su sach » so sach, vu sach
va chat » van chat, va phat, cao chat
ve chat » van chat
nang xa » nang x, lang xa, nang ma
cua tre » cua te, cuu tre, cua triet

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 hoi. hieu ((ve chat) OR (va chat)) xuc cam ((dan vai) or (dan vat)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky nang xa hoi. hieu ((ve chat) OR (va chat)) xuc cam ((dan vai) OR (dan vat)) cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ky nang xa hoi. hieu ((ve chat) OR (va chat)) xuc cam ((dan vai) or (dan vat)) cua tre".
• Adding a wildcard symbol may retrieve word variants: su sach ky nang xa hoi. hieu ((ve chat) OR (va chat)) xuc cam ((dan vai) or (dan vat)) cua tre*.