Perhaps you should try some spelling variations:
nhanh thai » nhanh thanh, nhanh thang, nhan tai
nhanh thi » nhanh thuc, nhan tai, nhanh ha
cua tre » cua te, cuu tre, cua triet
ky dang » ky nang, ky danh
dang xa » dang xay, lang xa, dang ha
hieu ve » hieu va, hieu van
bao duc » dao duc, bao luc, cao duc
duc van » duc va, duc tan, duc manh
su sai » su hai, su dai, su mai
su tai » su thi, tu tai
ve bao » te bao, va bao

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) OR (su tai)) ky dang xa hoi. hieu ve bao duc van ((nhanh thai) or (nhanh thi)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sai) OR (su tai)) ky dang xa hoi. hieu ve bao duc van ((nhanh thai) OR (nhanh thi)) cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sai) OR (su tai)) ky dang xa hoi. hieu ve bao duc van ((nhanh thai) or (nhanh thi)) cua tre".
• Adding a wildcard symbol may retrieve word variants: ((su sai) OR (su tai)) ky dang xa hoi. hieu ve bao duc van ((nhanh thai) or (nhanh thi)) cua tre*.