Perhaps you should try some spelling variations:
sang lap » sang tao, sang ma, sang tai
cam duc » cam xuc, cao duc, pham duc
ky sang » ky nang, ky dang, ky tang
lap lai » lap tai, lay lai, lam lai
hieu ve » hieu va, hieu van
cua vu » cua su, cua vi, cua cu
cua te » cua tu
su xac » pu xac, su cac
dan vi » doan vi, don vi, dan va
va dan » ca dan, va dao, va dau
xac ky » cac ky, sac ky, bac ky
ve cam » ve cham, ve cac, va cam

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

• Performing a fuzzy search may retrieve terms with similar spellings: su xac ky sang lap lai. hieu ve cam duc va dan vi ((cua te) or (((cua vu) or (qua su))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su xac ky sang lap lai. hieu ve cam duc va dan vi ((cua te) OR (((cua vu) OR (qua su)))).
• Adding a wildcard symbol may retrieve word variants: su xac ky sang lap lai. hieu ve cam duc va dan vi ((cua te) or (((cua vu) or (qua su))))*.