Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
thanh vi » hanh vi, thanh va, thanh ve
thuc van » thuc vat, thuc dan, thuc va
te sach » toc sach
ve cac » va cac, vien cac
vi cua » vai cua, di cua
cua te » cua tu
y lang » _ lang, tay lang, yen lang
ve cam » ve cham, va cam, ve cai
o lang » hoa lang, hoi lang

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 ((y lang) or (o lang)) xa hoi. hieu ((ve cam) OR (ve cac)) thuc van thanh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((y lang) OR (o lang)) xa hoi. hieu ((ve cam) OR (ve cac)) thuc van thanh vi cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((y lang) or (o lang)) xa hoi. hieu ((ve cam) OR (ve cac)) thuc van thanh vi cua te".
• Adding a wildcard symbol may retrieve word variants: te sach ((y lang) or (o lang)) xa hoi. hieu ((ve cam) OR (ve cac)) thuc van thanh vi cua te*.