Perhaps you should try some spelling variations:
cua thuoc » nha thuoc, cay thuoc, cua nuoc
thu sach » thuat sach, thuoc sach, thu hoach
tay lang » tai lang, tay tang, tay quang
cau phuc » cau truc, chau phu, huu phuc
tu sach » su sach, te sach, tu cach
lang xa » lang ha, dang xay, lang van
qua cau » quan cau, qua cac, qua ca
phuc va » phuc vu, thuc va, chuc va
va hanh » van hanh, va thanh, va danh
cua tu » cua tuc, cua su, cua cu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu sach) OR (thu sach)) tay lang xa hoi. hieu qua cau phuc va hanh vi ((cua tu) or (cua thuoc))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (thu sach)) tay lang xa hoi. hieu qua cau phuc va hanh vi ((cua tu) OR (cua thuoc))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) OR (thu sach)) tay lang xa hoi. hieu qua cau phuc va hanh vi ((cua tu) or (cua thuoc))*".