Perhaps you should try some spelling variations:
hieu cua » hieu qua, dieu cua, bieu cua
cua luat » quy luat
luat tuc » luat thue
tinh doi » trinh doc, trinh do, tinh hoc
va tinh » may tinh
doi cuu » doi cua, doi cuoc
cuu tre » cua tre, cau tren, cau treo
te sac » te sach, te cac, te san
sac ky » cac ky, sai ky
ma hoi » mai hoi, xa hoi, me hoi
tuc va » thuc va, truc va, tuc xa

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sac ky nang ((ma hoi) or (ma hoa)). hieu cua luat tuc va tinh doi cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sac ky nang ((ma hoi) OR (ma hoa)). hieu cua luat tuc va tinh doi cuu tre.
• Adding a wildcard symbol may retrieve word variants: te sac ky nang ((ma hoi) or (ma hoa)). hieu cua luat tuc va tinh doi cuu tre*.