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