Perhaps you should try some spelling variations:
van sinh » van minh, va sinh, van dinh
ve cham » va cham, ve chat, vu cham
vat cua » mat cua, bat cua, dat cua
duc van » duc va, duc tan, duc manh
tu ban » thu ban, te ban
ve cac » va cac, vien cac
cua te » cua tu
ban ky » van ky, dan ky
ve cam » va cam, ve cai, ve cau
nang o » nang co, nang ho, nang ro
o hoc » co hoc, mo hoc, so hoc

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

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