Perhaps you should try some spelling variations:
ky tang » ky nang, kho tang, ky trong
ky dang » ky nang, ky danh
hieu ve » hieu va, hieu van
xuc van » duc van, luc van, vuc van
xuc ban » duc ban, cuc ban, quoc ban
anh hai » lanh hai, manh hai, anh thai
hai cua » thai cua, dai cua, hoi cua
su cac » tu cac, su cao, su can
ve cam » ve cham, ve cac, va cam
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: su cac ((ky tang) or (ky dang)) xa hoi. hieu ve cam ((xuc van) or (xuc ban)) anh hai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su cac ((ky tang) OR (ky dang)) xa hoi. hieu ve cam ((xuc van) OR (xuc ban)) anh hai cua te.
• Adding a wildcard symbol may retrieve word variants: su cac ((ky tang) or (ky dang)) xa hoi. hieu ve cam ((xuc van) or (xuc ban)) anh hai cua te*.