Perhaps you should try some spelling variations:
sang tao » hang tai
sang lap » sang ma, sang tai, dan lap
danh di » danh du, xanh di, danh dien
hieu ve » hieu va, hieu van
cau luc » cau truc, cau phuc
danh vi » hanh vi, dinh vi, danh va
so sac » so sach, so dac
ve cau » ke cau, va cau, ve cac
luc va » duc va, tuc va, loc va
sac ky » cac ky, sai ky
cua tu » cua tuc, cua su, cua cu

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sac ky ((sang lap) or (sang tao)) hai. hieu ve cau luc va ((danh vi) OR (danh di)) cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sac ky ((sang lap) OR (sang tao)) hai. hieu ve cau luc va ((danh vi) OR (danh di)) cua tu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sac ky ((sang lap) or (sang tao)) hai. hieu ve cau luc va ((danh vi) OR (danh di)) cua tu".
• Adding a wildcard symbol may retrieve word variants: so sac ky ((sang lap) or (sang tao)) hai. hieu ve cau luc va ((danh vi) OR (danh di)) cua tu*.