Perhaps you should try some spelling variations:
tai khoa » da khoa, noi khoa
mai khoi » mai khoa, cac khoi, dai khoa
hanh ca » hanh cac, hanh cat, hanh cua
va hanh » van hanh, va thanh, va danh
cau luc » cau truc, cau phuc
hieu ve » hieu va, hieu van
te sach » toc sach
y nang » ky nang, ly nang, v nang
ve cau » ke cau, va cau, ve cac
luc va » duc va, tuc va, loc va
ma hoi » mai hoi, xa hoi, ma hoa
ca cua » co cua
cua su » qua su

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach y nang ((ma hoi) or (((mai khoi) or (tai khoa)))). hieu ve cau luc va hanh ca cua su~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y nang ((ma hoi) OR (((mai khoi) OR (tai khoa)))). hieu ve cau luc va hanh ca cua su.
• Adding a wildcard symbol may retrieve word variants: te sach y nang ((ma hoi) or (((mai khoi) or (tai khoa)))). hieu ve cau luc va hanh ca cua su*.