Perhaps you should try some spelling variations:
thanh di » thanh doi, thanh de, thanh do
ky lang » ky nang, ky dang, tay lang
ky tang » ky nang, ky dang, kho tang
hieu ve » hieu va, hieu van
loc va » hoc va
di cua » dai cua, doi cua, de cua
su xac » pu xac, su cac
luc va » duc va, tuc va
ve cac » va cac, vien cac
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 xac ((ky lang) OR (ky tang)) ha noi. hieu ve cac ((luc va) or (loc va)) thanh di cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su xac ((ky lang) OR (ky tang)) ha noi. hieu ve cac ((luc va) OR (loc va)) thanh di cua te*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su xac ((ky lang) OR (ky tang)) ha noi. hieu ve cac ((luc va) or (loc va)) thanh di cua te*".