Perhaps you should try some spelling variations:
van tham » van thanh, van tuan, van chat
thanh vi » hanh vi, thanh va, thanh ve
hieu van » hieu va, thien van, lieu va
ky lang » ky nang, ky dang, ky tang
lang ha » long ha
vi cua » vai cua, di cua
soc va » loc va, doc va, goc va
te cac » tu cac, te cao, de cac
ha hoi » hoa hoi, ha noi, xa hoi
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: ((te cac) or (ve cac)) ky lang ha hoi. hieu van tham ((soc va) OR (hoc va)) thanh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te cac) OR (ve cac)) ky lang ha hoi. hieu van tham ((soc va) OR (hoc va)) thanh vi cua te*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te cac) or (ve cac)) ky lang ha hoi. hieu van tham ((soc va) OR (hoc va)) thanh vi cua te*".