Perhaps you should try some spelling variations:
hieu ve » hieu va, hieu van
cam duc » cam xuc, cao duc, pham duc
ky sang » ky nang, ky dang, ky tang
lap hai » lap tai, lap lai, lap hoat
lay lai » lay thai
dan vi » doan vi, don vi, dan va
va dan » ca dan, va dao, va dau
su sac » su sach, su cac, su xac
ve cam » ve cham, ve cac, va cam
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: su sac ky sang ((lap hai) or (lay lai)). hieu ve cam duc va dan vi ((cua te) or (cua tu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sac ky sang ((lap hai) OR (lay lai)). hieu ve cam duc va dan vi ((cua te) OR (cua tu)).
• Adding a wildcard symbol may retrieve word variants: su sac ky sang ((lap hai) or (lay lai)). hieu ve cam duc va dan vi ((cua te) or (cua tu))*.