Perhaps you should try some spelling variations:
dang thanh » dong thanh, dang hanh, hoang thanh
nham thuc » nhan thuc, nam thuc, nham thu
dan thanh » danh thanh, ban thanh, van thanh
so cach » so sach, co cach, loi cach
cach tu » cach thuc
ve nham » ve nha, ve cham
hieu ve » hieu va, hieu van
nang ma » tang ma, sang ma, nang cao
tu nang » tru nang, tu nong, tu nano
cua tre » cua te, cuu tre, cua triet
ma hoi » mai hoi, xa hoi, ma hoa
vi cua » vai cua, di cua

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "so cach tu nang ma hoi. hieu ve nham thuc ((dan thanh) OR (dang thanh)) vi cua tre~".
• Adding a wildcard symbol may retrieve word variants: so cach tu nang ma hoi. hieu ve nham thuc ((dan thanh) OR (dang thanh)) vi cua tre*.