Perhaps you should try some spelling variations:
thanh lai » thanh hai, thanh lap, thanh loi
va thanh » gia thanh, ban thanh, va tinh
su sach » so sach, vu sach
sach ty » sach y, sach tu, sach thu
lai cho » lai chau, bai choi, lai cuoc
cam luc » cam xuc, cau luc
cho tre » cho thue, khoe tre
hieu va » lieu va
ty nang » ky nang, ty xang, ty hang
luc va » duc va, tuc va, loc va
co hoi » co hoc

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 ty nang ((co hoi) or (co loi)). ((hieu va) OR (hieu qua)) cam luc va thanh lai cho tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ty nang ((co hoi) OR (co loi)). ((hieu va) OR (hieu qua)) cam luc va thanh lai cho tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ty nang ((co hoi) or (co loi)). ((hieu va) OR (hieu qua)) cam luc va thanh lai cho tre".
• Adding a wildcard symbol may retrieve word variants: su sach ty nang ((co hoi) or (co loi)). ((hieu va) OR (hieu qua)) cam luc va thanh lai cho tre*.