Perhaps you should try some spelling variations:
va dinh » van dinh, va kinh, va tinh
dao duc » giao duc, tao duoc
tu xach » tu hach, tu sach
thi lan » thi hanh, thi nang, thi lien
tu cach » tu cac
qua dao » lua dao, qua da, cua dao
lan xa » lang xa, dan xa, lan ha
di cau » diem cau
da cau » dat cau, va cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu xach) or (tu cach)) thi lan xa hoi. hieu qua dao duc va dinh ((di cau) or (da cau)) tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu xach) OR (tu cach)) thi lan xa hoi. hieu qua dao duc va dinh ((di cau) OR (da cau)) tren.
• Adding a wildcard symbol may retrieve word variants: ((tu xach) or (tu cach)) thi lan xa hoi. hieu qua dao duc va dinh ((di cau) or (da cau)) tren*.