Perhaps you should try some spelling variations:
sach tham » sach nha
cach thuc » anh thuc, cac thu
hang dai » hoang dai, hang tai, hang dau
nang xa » nang x, lang xa, nang ma
va hang » van hang, va nang, va lang
qua ca » qua cac, qua cua, qua cai
ca xuc » cam xuc, chat xuc
xuc va » duc va, tuc va, luc va
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 ((((cach tu) OR (cach thuc))) or (sach tham)) nang xa hoi. hieu qua ca xuc va hang dai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((((cach tu) OR (cach thuc))) OR (sach tham)) nang xa hoi. hieu qua ca xuc va hang dai cua te*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((((cach tu) OR (cach thuc))) or (sach tham)) nang xa hoi. hieu qua ca xuc va hang dai cua te*".