Perhaps you should try some spelling variations:
sang lap » sang tao, sang ma, sang tai
bach ky » bac ky
cau luc » cau truc, cau phuc
hieu ve » hieu van
dinh vi » dinh ve, dinh viet, dinh tri
hieu va » hieu qua
ky sang » ky nang, ky dang, ky tang
va dinh » van dinh, va kinh, va tinh
vi cua » vai cua, di cua
luc va » duc va, tuc va, loc va
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu bach ky sang lap tai. ((hieu ve) or (((hieu va) or (lieu va)))) cau luc va dinh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu bach ky sang lap tai. ((hieu ve) OR (((hieu va) OR (lieu va)))) cau luc va dinh vi cua te.
• Adding a wildcard symbol may retrieve word variants: vu bach ky sang lap tai. ((hieu ve) or (((hieu va) or (lieu va)))) cau luc va dinh vi cua te*.