Perhaps you should try some spelling variations:
thanh dam » thanh dat, thanh nam, thanh tam
nang dau » hang dau, xang dau, nang du
hanh dao » lanh dao, thanh dat, doanh dao
cua tre » cua te, cuu tre, cua triet
dau hoa » dau khoa, cau hoa, dai hoa
hieu ve » hieu van
hieu va » lieu va, hieu qua
cam tuc » cam xuc, cam tu, nam thuc
so sac » so sach, so dac
tuc va » thuc va, truc va, tuc xa
sac ky » cac ky, sai ky

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sac ky nang dau hoa. ((hieu ve) or (hieu va)) cam tuc va ((hanh dao) or (thanh dam)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sac ky nang dau hoa. ((hieu ve) OR (hieu va)) cam tuc va ((hanh dao) OR (thanh dam)) cua tre.
• Adding a wildcard symbol may retrieve word variants: so sac ky nang dau hoa. ((hieu ve) or (hieu va)) cam tuc va ((hanh dao) or (thanh dam)) cua tre*.