Perhaps you should try some spelling variations:
thanh vi » thanh va, thanh ve, nhanh vi
tu sach » thu sach, su sach, te sach
sach ty » sach y, sach tu, sach thu
cu tren » tu tren, dua tren
hieu va » lieu va, hieu qua
lang xa » lang ha, dang xay, lang van
ty lang » tay lang, ty xang, ty hang
va cau » van cau, va cac, va dau
xuc va » duc va, tuc va, xac va
luc va » duc va, tuc va, loc va

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

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