Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
hieu van » hieu va, thien van, lieu va
va thanh » gia thanh, ban thanh, va tinh
thanh ve » hanh ve, thanh va, thanh vien
cau tren » cu tren, dau tren, ca tren
ly nang » ky nang, ly hang, ly quang
ly vang » ly hang, ly van, ly quang
van cam » van nam, van lam, van cau
xuc va » duc va, tuc va, luc va
ve cau » ke cau, va cau, ve cac

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 ((ly nang) OR (ly vang)) xa hoi. hieu van cam xuc va thanh ve cau tren~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach ((ly nang) OR (ly vang)) xa hoi. hieu van cam xuc va thanh ve cau tren".
• Adding a wildcard symbol may retrieve word variants: thu sach ((ly nang) OR (ly vang)) xa hoi. hieu van cam xuc va thanh ve cau tren*.