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