Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
thanh ve » hanh ve, thanh va, thanh vien
tu tieng » luc tieng, tu tuong, tu trong
tu sach » thu sach, su sach, te sach
sach vu » sach va, sach tu, sach uu
vu nang » vuc nang, va nang, vu dang
xuc van » duc van, luc van, vuc van
va cam » va cham, va cac, va cai
va cao » va cac, va co, va dao
x hoi » xa hoi, o hoi, x ho
ve tu » ve thu, va tu, ve su

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 vu nang x hoi. hieu ((va cam) OR (va cao)) xuc van thanh ve tu tieng~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach vu nang x hoi. hieu ((va cam) OR (va cao)) xuc van thanh ve tu tieng".
• Adding a wildcard symbol may retrieve word variants: tu sach vu nang x hoi. hieu ((va cam) OR (va cao)) xuc van thanh ve tu tieng*.