Perhaps you should try some spelling variations:
tham thuc » nham thuc, pham thuc, tam thuc
hanh danh » hanh doanh, han danh, anh danh
danh kien » dinh kien, danh viet, linh kien
kien cua » khien cua, dien cua, tien cua
doc sai » doc hai, do sai, doc sach
nang xa » nang x, lang xa, nang ma
hieu va » hieu qua
cua tre » cua te, cuu tre, cua triet
sai ky » sac ky

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc sai ky nang xa hoi. ((hieu va) or (lieu va)) tham thuc hanh danh kien cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc sai ky nang xa hoi. ((hieu va) OR (lieu va)) tham thuc hanh danh kien cua tre.
• Adding a wildcard symbol may retrieve word variants: doc sai ky nang xa hoi. ((hieu va) or (lieu va)) tham thuc hanh danh kien cua tre*.