Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
dinh lap » dinh lam, trinh lap, dinh lang
dinh lai » dinh lam, dinh tai, dinh hai
cuu tre » cua tre, cau tren, cau treo
sach ty » sach y, sach tu, sach thu
nang xa » nang x, lang xa, nang ma
ty nang » ky nang, ty xang, ty hang
luc va » duc va, tuc va, loc va
ve cac » vien cac

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 ty nang xa hoi. hieu ((ve cac) or (va cac)) luc va ((dinh lai) OR (dinh lap)) cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat sach ty nang xa hoi. hieu ((ve cac) OR (va cac)) luc va ((dinh lai) OR (dinh lap)) cuu tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat sach ty nang xa hoi. hieu ((ve cac) or (va cac)) luc va ((dinh lai) OR (dinh lap)) cuu tre*".