Perhaps you should try some spelling variations:
dan thanh » dang thanh, danh thanh, ban thanh
yen lang » den lang, ten lang, yen giang
thuc dan » thuc hanh, hoc dan, thuc vat
thanh vi » hanh vi, thanh va, thanh ve
te sach » toc sach
hieu ve » hieu va, hieu van
y lang » o lang, tay lang
_ lang » o lang, _ land
vi cua » vai cua, di cua
cua tu » cua tuc, cua su, cua cu
ve am » va am

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