Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
thu sach » tu sach, thuat sach, thu hoach
lai cam » lai nam, lai tam, lai chau
lai cau » lai chau, loi cau, loai cay
va hanh » van hanh, va thanh, va danh
hieu ve » hieu va, hieu van
ly nang » ky nang, ly hang, ly vang
xuc va » duc va, tuc va, luc va
ve cam » ve cham, ve cac, va cam
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((thu sach) or (thuoc sach)) ly nang x hoi. hieu ve cam xuc va hanh ((lai cau) OR (lai cam)) thi~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thu sach) OR (thuoc sach)) ly nang x hoi. hieu ve cam xuc va hanh ((lai cau) OR (lai cam)) thi.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((thu sach) or (thuoc sach)) ly nang x hoi. hieu ve cam xuc va hanh ((lai cau) OR (lai cam)) thi".
• Adding a wildcard symbol may retrieve word variants: ((thu sach) or (thuoc sach)) ly nang x hoi. hieu ve cam xuc va hanh ((lai cau) OR (lai cam)) thi*.