Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
nhan tai » hang tai, van tai, toan tai
han tai » hang tai, van tai, toan tai
ve chat » va chat, van chat
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
cua tre » cua te, cuu tre, cua triet
ve cam » ve cham, ve cac, va cam

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach ky nang xa hoi. hieu ((ve cam) or (ve chat)) suc manh ((han tai) or (nhan tai)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ky nang xa hoi. hieu ((ve cam) OR (ve chat)) suc manh ((han tai) OR (nhan tai)) cua tre.
• Adding a wildcard symbol may retrieve word variants: thu sach ky nang xa hoi. hieu ((ve cam) or (ve chat)) suc manh ((han tai) or (nhan tai)) cua tre*.