Perhaps you should try some spelling variations:
thu trong » thuc trong, thue trong, thuy trong
chat xuc » chat huu, cam xuc, chao xu
sach thu » sach thue, sach thieu, sach tham
hanh tai » thanh tai, hang tai, han tai
hanh vai » hanh vi, hanh va, hanh van
so sach » so sanh, bo sach, co sach
cac hoc » cach hoc, cac hop, bac hoc
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sach thu trong cac hoc. hieu qua ((chat xuc) or (cham soc)) va ((hanh vai) OR (hanh tai)) cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach thu trong cac hoc. hieu qua ((chat xuc) OR (cham soc)) va ((hanh vai) OR (hanh tai)) cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach thu trong cac hoc. hieu qua ((chat xuc) or (cham soc)) va ((hanh vai) OR (hanh tai)) cua te".
• Adding a wildcard symbol may retrieve word variants: so sach thu trong cac hoc. hieu qua ((chat xuc) or (cham soc)) va ((hanh vai) OR (hanh tai)) cua te*.