Perhaps you should try some spelling variations:
thanh tien » thanh vien, thanh nien, thang tien
benh thanh » benh than, binh thanh, lenh thanh
moi nganh » khoi nganh, hoc nganh, moi ngay
so nganh » so ngan, hoc nganh, doi nganh
tien cua » trien cua, tiep cua, dien cua
qua cac » cua cac
cac tai » cao tai, cac bai, cac dai
cua tre » cua te, cuu tre, cua triet
x hoi » o hoi, x ho, 5 hoi

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((so nganh) OR (moi nganh)) ky nang ((x hoi) or (xa hoi)). hieu qua cac tai benh thanh tien cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((so nganh) OR (moi nganh)) ky nang ((x hoi) OR (xa hoi)). hieu qua cac tai benh thanh tien cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((so nganh) OR (moi nganh)) ky nang ((x hoi) or (xa hoi)). hieu qua cac tai benh thanh tien cua tre".
• Adding a wildcard symbol may retrieve word variants: ((so nganh) OR (moi nganh)) ky nang ((x hoi) or (xa hoi)). hieu qua cac tai benh thanh tien cua tre*.