Perhaps you should try some spelling variations:
sang lap » sang tao, sang ma, sang tai
cam duc » cam xuc, cao duc, pham duc
doan vi » doan va, don vi, doan thi
ky sang » ky nang, ky dang, ky tang
lap lai » lap tai, lay lai, lam lai
hieu ve » hieu va, hieu van
va doan » va doanh, van doan, va dan
cua tu » cua tuc, cua cu, cua vu
su sac » su sach, su cac, su xac
sac ky » cac ky, sai ky
ve cam » ve cham, ve cac, va cam
cua su » qua su

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

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