Perhaps you should try some spelling variations:
sach tham » sach nha
sach tai » sach bai, sach dao, sach xa
hieu thi » sieu thi, hieu chi, hiep thi
thi cham » thi hai, toc cham, thi ha
cham duc » pham duc, cham soc, pham duy
van hanh » van thanh, ban hanh, van anh
lang xa » lang ha, dang xay, lang van
duc van » duc va, duc tan, duc manh
cua tre » cua te, cuu tre, cua triet
vi cua » vai cua, di cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuoc ((sach tai) OR (sach tham)) lang xa hoi. hieu thi cham duc van hanh vi cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuoc ((sach tai) OR (sach tham)) lang xa hoi. hieu thi cham duc van hanh vi cua tre".
• Adding a wildcard symbol may retrieve word variants: thuoc ((sach tai) OR (sach tham)) lang xa hoi. hieu thi cham duc van hanh vi cua tre*.