Perhaps you should try some spelling variations:
thu sach » thuat sach, thuoc sach, thu hoach
dau tren » dau tien, dat tren, dau tieng
tu sach » su sach, te sach, tu cach
cau xuc » cam xuc, cau luc, cau truc
va hanh » van hanh, va thanh, va danh
va cau » van cau, va cac, va dau
xuc va » duc va, tuc va, luc va
vi dau » vi dai, va dau, bi dau

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