Perhaps you should try some spelling variations:
sach thu » sach thue, sach thieu, sach tham
thu nang » thi nang, thu hang, thu bang
dong cua » dung cua, cong cua, huong cua
te sach » toc sach
nang xa » nang x, lang xa, nang ma
qua cac » cua cac
doi cua » dai cua, hoi cua
xuc va » tuc va, luc va, xac va

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach thu nang xa hoi. hieu qua cac ((xuc va) OR (duc va)) hanh ((doi cua) or (dong cua)) te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach thu nang xa hoi. hieu qua cac ((xuc va) OR (duc va)) hanh ((doi cua) OR (dong cua)) te*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach thu nang xa hoi. hieu qua cac ((xuc va) OR (duc va)) hanh ((doi cua) or (dong cua)) te*".