Perhaps you should try some spelling variations:
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
hieu ve » hieu van
hieu va » lieu va, hieu qua
cac loc » cac lop, cac toc, cac hoc
va hanh » van hanh, va thanh, va danh
tu san » thu san, tu ban, tu can
san ky » sang ky, van ky, dan ky
loc va » hoc va, luc va
vi cua » vai cua, di cua
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: tu san ky lang xa hoi. ((hieu ve) or (hieu va)) cac loc va hanh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu san ky lang xa hoi. ((hieu ve) OR (hieu va)) cac loc va hanh vi cua te.
• Adding a wildcard symbol may retrieve word variants: tu san ky lang xa hoi. ((hieu ve) or (hieu va)) cac loc va hanh vi cua te*.