Perhaps you should try some spelling variations:
hanh hai » thanh hai, nhanh hai, hang hai
cham duc » pham duc, cham soc, pham duy
van hanh » van thanh, ban hanh, van anh
ve cham » va cham, ve chat, vu cham
ky lang » ky nang, ky dang, tay lang
cua tre » cuu tre, cua triet, dua tren
ky tang » ky nang, ky dang, kho tang
hieu ve » hieu va, hieu van
duc van » duc va, duc tan, duc manh
su sac » su sach, su cac, su xac
cua te » cua tu

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: su sac ((ky lang) OR (ky tang)) xa hoi. hieu ve cham duc van hanh hai ((cua tre) OR (cua te))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sac ((ky lang) OR (ky tang)) xa hoi. hieu ve cham duc van hanh hai ((cua tre) or (cua te))~".
• Adding a wildcard symbol may retrieve word variants: su sac ((ky lang) OR (ky tang)) xa hoi. hieu ve cham duc van hanh hai ((cua tre) or (cua te))*.