Perhaps you should try some spelling variations:
trung va » truong va, trang va, trung ha
bo sach » co sach, hoc sach
ky lang » ky dang, ky tang, tay lang
hieu va » lieu va, hieu qua
va cau » van cau, va cac, va dau
xuc va » duc va, tuc va, luc va
vi cua » vai cua, di cua
cua te » cua tu

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: bo sach ((ky lang) or (ky nang)) xa hoi. hieu va cau ((xuc va) or (trung va)) hanh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: bo sach ((ky lang) OR (ky nang)) xa hoi. hieu va cau ((xuc va) OR (trung va)) hanh vi cua te.
• Adding a wildcard symbol may retrieve word variants: bo sach ((ky lang) or (ky nang)) xa hoi. hieu va cau ((xuc va) or (trung va)) hanh vi cua te*.