Perhaps you should try some spelling variations:
van luat » dan luat, va luat, van xuat
mat hang » mat bang, dat hang, tat thang
luat tuc » luat thue
hieu van » hieu va, thien van, lieu va
ma hang » mua hang, va hang, ban hang
te sach » toc sach
ty hang » ly hang, ty xang, thi hang
ty lang » tay lang, ty xang, tu lang
va cua » va chua, via cua, ca 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: te sach ((ty lang) or (ty hang)) xa hoi. hieu van luat tuc ((ma hang) OR (mat hang)) va cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((ty lang) OR (ty hang)) xa hoi. hieu van luat tuc ((ma hang) OR (mat hang)) va cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((ty lang) or (ty hang)) xa hoi. hieu van luat tuc ((ma hang) OR (mat hang)) va cua te".
• Adding a wildcard symbol may retrieve word variants: te sach ((ty lang) or (ty hang)) xa hoi. hieu van luat tuc ((ma hang) OR (mat hang)) va cua te*.