Perhaps you should try some spelling variations:
cach thuc » anh thuc, cac thu
ban thanh » ban hanh, ban hang
hieu vien » hieu hien, hieu viec, lieu vien
duc ban » duc tan, duc van, dua ban
vien da » vien dai, hien dai
lang xa » lang ha, dang xay, lang van
da duc » dao duc, da duoc, do duc
va cua » va chua, via cua, ma cua
ca cua » co 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 ((dan toc) or (cach thuc)) lang xa hoi. hieu vien da duc ban thanh ((va cua) or (ca cua)) tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu ((dan toc) OR (cach thuc)) lang xa hoi. hieu vien da duc ban thanh ((va cua) OR (ca cua)) tu.
• Adding a wildcard symbol may retrieve word variants: thu ((dan toc) or (cach thuc)) lang xa hoi. hieu vien da duc ban thanh ((va cua) or (ca cua)) tu*.