Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
nam thuc » nam thuoc, am thuc, nam thu
cuu tre » cau tren, cau treo
cua tre » cua te, cua triet, dua tren
ky lang » ky nang, ky dang, ky tang
lang ha » long ha
va hanh » van hanh, va thanh, va danh
hieu va » lieu va, hieu qua
thuc va » thuc vat, thuc dan, thuc day
te sac » te sach, te cac
ha hoi » hoa hoi, ha noi, xa hoi
te san » te ban, ke san, tu san
va nam » van nam, ha nam, va nay

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((te sac) or (te san)) ky lang ha hoi. hieu va nam thuc va hanh trinh ((cua tre) or (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sac) OR (te san)) ky lang ha hoi. hieu va nam thuc va hanh trinh ((cua tre) OR (cuu tre)).
• Adding a wildcard symbol may retrieve word variants: ((te sac) or (te san)) ky lang ha hoi. hieu va nam thuc va hanh trinh ((cua tre) or (cuu tre))*.