Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
cach thuc » anh thuc
vien dai » hien dai
thanh va » thanh van, hanh va, thanh ha
duc van » duc va, duc tan, duc manh
cua tuc » cua duc, cua tu, cua thuoc
vien da » hien dai
lang xa » lang ha, dang xay, lang van
cac thu » cac thoi
va cua » va chua, via cua, ca cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu ((cach thuc) or (cac thu)) lang xa hoi. hieu ((vien da) or (vien dai)) duc van thanh va cua tuc~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu ((cach thuc) OR (cac thu)) lang xa hoi. hieu ((vien da) OR (vien dai)) duc van thanh va cua tuc.
• Adding a wildcard symbol may retrieve word variants: thu ((cach thuc) or (cac thu)) lang xa hoi. hieu ((vien da) or (vien dai)) duc van thanh va cua tuc*.