Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
cham tuc » nham thuc, pham thuc, tham thuc
cau tren » dau tren, ca tren, cau treo
va cham » va chat, va tham
va hanh » van hanh, va thanh, va danh
cu tren » tu tren, dua tren
y nang » ky nang, ly nang, may nang
v nang » va nang, vu nang, van nang
tuc va » thuc va, truc va, tuc xa

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