Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
hanh tai » thanh tai, hang tai, han tai
te sach » toc sach
sach ty » sach y, sach tu, sach thu
xang xa » lang xa, mang xa, ang xa
xuc van » duc van, luc van, vuc van
tai nha » tai ha, tai ngan, tai khoa
ve cai » va cai, ve tai, ve cau
ve cac » va cac, vien cac
nuoc » quoc, duoc, ngoc

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ty xang xa hoi. hieu ((ve cai) or (ve cac)) xuc van hanh tai nha nuoc~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ty xang xa hoi. hieu ((ve cai) OR (ve cac)) xuc van hanh tai nha nuoc.
• Adding a wildcard symbol may retrieve word variants: te sach ty xang xa hoi. hieu ((ve cai) or (ve cac)) xuc van hanh tai nha nuoc*.