Perhaps you should try some spelling variations:
hanh phan » thanh phan, anh phan, hanh han
phan cua » nhan cua, than cua, phat cua
van hanh » van thanh, ban hanh, van anh
hieu ve » hieu va, hieu van
duc van » duc va, duc tan, duc manh
cac duc » cac du, cao duc, cac dac
cua tre » cua te, cuu tre, cua triet
nang ro » nang co, nang ho, nang ra
ve cac » va cac, vien cac
nang o » nang co, nang ho, nang x
tu ban » thu ban, te ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu cac) or (tu ban)) ky ((nang o) OR (nang ro)) lai. hieu ve cac duc van hanh phan cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu cac) OR (tu ban)) ky ((nang o) OR (nang ro)) lai. hieu ve cac duc van hanh phan cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu cac) or (tu ban)) ky ((nang o) OR (nang ro)) lai. hieu ve cac duc van hanh phan cua tre".
• Adding a wildcard symbol may retrieve word variants: ((tu cac) or (tu ban)) ky ((nang o) OR (nang ro)) lai. hieu ve cac duc van hanh phan cua tre*.