Perhaps you should try some spelling variations:
sach thu » sach thue, sach thieu, sach tham
thu nang » thi nang, thu hang, thu bang
te sach » toc sach
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
va cham » va chat, va tham
hanh di » hanh vi, hanh de, hang di
xuc va » luc va, xac va
tuc va » thuc va, truc va, tuc xa
di cua » dai cua, doi cua, de cua
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: te sach thu nang xa hoi. hieu va cham ((((xuc va) OR (tuc va))) or (duc va)) hanh di cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach thu nang xa hoi. hieu va cham ((((xuc va) OR (tuc va))) OR (duc va)) hanh di cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach thu nang xa hoi. hieu va cham ((((xuc va) OR (tuc va))) or (duc va)) hanh di cua te".
• Adding a wildcard symbol may retrieve word variants: te sach thu nang xa hoi. hieu va cham ((((xuc va) OR (tuc va))) or (duc va)) hanh di cua te*.