Perhaps you should try some spelling variations:
sach thu » sach thue, sach thieu, sach tham
thu tang » thu trang, thu thang, thu hang
cham xuc » cam xuc, chat xuc, cham soc
so sach » so sanh, bo sach, co sach
va hanh » van hanh, va thanh, va danh
va cham » va chat, va tham
hieu va » lieu va, hieu qua
van hoc » van hoa
van hoi » van hoa, van hoe, van loi
xuc va » duc va, tuc va, luc va
cua tu » cua tuc, cua su, cua cu

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 tang ((van hoi) or (van hoc)). hieu va cham xuc va hanh vi ((cua te) OR (cua tu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach thu tang ((van hoi) OR (van hoc)). hieu va cham xuc va hanh vi ((cua te) OR (cua tu)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach thu tang ((van hoi) or (van hoc)). hieu va cham xuc va hanh vi ((cua te) OR (cua tu))".
• Adding a wildcard symbol may retrieve word variants: so sach thu tang ((van hoi) or (van hoc)). hieu va cham xuc va hanh vi ((cua te) OR (cua tu))*.