Perhaps you should try some spelling variations:
nhanh tri » nhanh thi, thanh tri, nhanh thai
van nhanh » van thanh, van hanh, van khanh
cua tre » cua te, cuu tre, cua triet
duc van » duc va, duc tan, duc manh
sai cao » tai cao, giai cao, suat cao
tang xa » trang xa, lang xa, tang ha
tang ma » mang may, tang van
ve cam » ve cham, va cam, ve cai
ve cac » va cac, vien cac
su sai » su tai, su hai, su dai

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sai cao ((tang xa) OR (tang ma)) hoi. hieu ((ve cam) or (ve cac)) duc van nhanh tri cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sai cao ((tang xa) OR (tang ma)) hoi. hieu ((ve cam) OR (ve cac)) duc van nhanh tri cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sai cao ((tang xa) OR (tang ma)) hoi. hieu ((ve cam) or (ve cac)) duc van nhanh tri cua tre".
• Adding a wildcard symbol may retrieve word variants: su sai cao ((tang xa) OR (tang ma)) hoi. hieu ((ve cam) or (ve cac)) duc van nhanh tri cua tre*.