Perhaps you should try some spelling variations:
cach ky » cac ky
hieu ve » hieu va, hieu van
cam duc » cam xuc, cao duc, pham duc
va hanh » van hanh, va thanh, va danh
cu tren » tu tren, dua tren
ve cam » ve cham, ve cac, va cam
cua te » cua tu
o hoi » co hoi, o hai, o hoa
o hoc » co hoc, mo hoc, so hoc
cuoc » quoc, duoc

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

• Performing a fuzzy search may retrieve terms with similar spellings: cuoc cach ky nang ((o hoi) OR (o hoc)). hieu ve cam duc va hanh vi ((cua te) or (cu tren))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: cuoc cach ky nang ((o hoi) OR (o hoc)). hieu ve cam duc va hanh vi ((cua te) OR (cu tren))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "cuoc cach ky nang ((o hoi) OR (o hoc)). hieu ve cam duc va hanh vi ((cua te) or (cu tren))*".