Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
tu sach » thu sach, su sach, te sach
ve cham » va cham, ve chat, vu cham
hanh va » hang va, hanh vi
xuc van » duc van, luc van, vuc van
chu tre » cho tre, chu tri, cuu tre
sang ma » tang ma, nang ma, sang tao
y sang » _ sang, duy sang
ve cac » va cac, vien cac
ma hoi » mai hoi, xa hoi, ma hoa
va chu » va che, va cau, va chi
va cai » va cac, va bai, va dai

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 y sang ma hoi. hieu ((((ve cac) or (va cai))) or (ve cham)) xuc van hanh va chu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y sang ma hoi. hieu ((((ve cac) OR (va cai))) OR (ve cham)) xuc van hanh va chu tre.
• Adding a wildcard symbol may retrieve word variants: tu sach y sang ma hoi. hieu ((((ve cac) or (va cai))) or (ve cham)) xuc van hanh va chu tre*.