Perhaps you should try some spelling variations:
hieu cua » hieu qua, dieu cua, bieu cua
sanh ky » hanh ky, sang ky, nganh ky
nang ma » tang ma, nang cao, mang may
sang ma » tang ma, sang tao, mang may
cac xuc » cam xuc, cac nuoc, chat xuc
xuc cac » xuc tac, tuc cac, xuc cam
dan doi » dan hoi, dan toi, van doi
doi cua » dai cua, hoi cua
cua tu » cua tuc, cua su, cua cu

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

• If you are trying to use Boolean operators, they must be ALL CAPS: do sanh ky ((nang ma) OR (sang ma)) hoi. hieu cua cac xuc cac dan doi cua tu~.
• Adding a wildcard symbol may retrieve word variants: do sanh ky ((nang ma) or (sang ma)) hoi. hieu cua cac xuc cac dan doi cua tu*.