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
nang xa » nang x, lang xa, nang ma
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, v 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 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 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 xa hoi. lieu va cham tuc va hanh vi ((cau tren) OR (cu tren))*.