Perhaps you should try some spelling variations:
thanh van » thanh san, thanh toan, thanh phan
thien van » thi van
thu sach » tu sach, thuat sach, thuoc sach
thanh va » hanh va, thanh ha, thanh ve
cam truc » cau truc, nam truc, lam truoc
van cam » van nam, van lam, van cau
truc va » thuc va, thuc vat, trung va
ly nang » ky nang, ly hang, ly vang
cu tren » tu tren, dua tren
y nang » ky nang, v nang, may nang

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