Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
va thanh » gia thanh, ban thanh, va tinh
thanh va » thanh van, hanh va, thanh ha
nang xa » nang x, lang xa, nang ma
van cam » van nam, van cau, van dam
van lam » van nam
truc va » thuc va, thuc vat, trung va
cu tren » tu tren, dua tren
y nang » ky nang, ly nang, v nang
va cu » va cau, va chu, va su

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. thien ((van cam) OR (van lam)) truc va thanh va cu tren~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach y nang xa hoi. thien ((van cam) OR (van lam)) truc va thanh va cu tren".
• Adding a wildcard symbol may retrieve word variants: thu sach y nang xa hoi. thien ((van cam) OR (van lam)) truc va thanh va cu tren*.