Perhaps you should try some spelling variations:
toc sach » hoc sach, doc sach, thuoc sach
hanh dai » hanh tai, hanh dao, vanh dai
va lang » va nang, hoa lang
lang xa » lang ha, dang xay, lang van
qua cam » qua cham, qua cac, qua ca
va hanh » van hanh, va thanh, va danh
cua tuc » cua duc, cua tu, cua thuoc
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 sach) or (toc sach)) va lang xa hoi. hieu qua cam xuc va hanh dai ((cua te) or (cua tuc))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sach) OR (toc sach)) va lang xa hoi. hieu qua cam xuc va hanh dai ((cua te) OR (cua tuc)).
• Adding a wildcard symbol may retrieve word variants: ((te sach) or (toc sach)) va lang xa hoi. hieu qua cam xuc va hanh dai ((cua te) or (cua tuc))*.