Perhaps you should try some spelling variations:
hanh thi » nhanh thi, hanh thoi, anh thi
hieu van » hieu va, thien van, lieu va
dai tien » dai tieng, dau tien, cai tien
vu hanh » vu khanh, vu thanh, du hanh
hanh va » hanh vi
van cau » van dau, van hau, van chat
cau xuc » cam xuc, cau luc, cau truc
xuc may » xuc hay, truc may, phuc may
tinh vi » trinh vi, tinh voi, tinh va
vi dai » si dai, li dai, vien dai

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu hanh thi ((hanh va) OR (hang va)) hoi. hieu van cau xuc may tinh vi dai tien~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu hanh thi ((hanh va) OR (hang va)) hoi. hieu van cau xuc may tinh vi dai tien".
• Adding a wildcard symbol may retrieve word variants: vu hanh thi ((hanh va) OR (hang va)) hoi. hieu van cau xuc may tinh vi dai tien*.