Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
cau tren » cu tren, dau tren, cau treo
nang ma » tang ma, sang ma, nang cao
cam luc » cau luc
va hanh » van hanh, va thanh, va danh
ca tren » cu tren, la tren, co tren
y nang » ky nang, ly nang, v nang
ma hoi » mai hoi, xa hoi, ma hoa

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 y nang ma hoi. lieu va ((cam luc) or (cam xuc)) va hanh vi ((cau tren) OR (ca tren))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach y nang ma hoi. lieu va ((cam luc) OR (cam xuc)) va hanh vi ((cau tren) OR (ca tren)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach y nang ma hoi. lieu va ((cam luc) or (cam xuc)) va hanh vi ((cau tren) OR (ca tren))".
• Adding a wildcard symbol may retrieve word variants: thu sach y nang ma hoi. lieu va ((cam luc) or (cam xuc)) va hanh vi ((cau tren) OR (ca tren))*.