Perhaps you should try some spelling variations:
va thanh » gia thanh, ban thanh, va tinh
dua tren » dung tren
thanh vi » hanh vi, thanh va, thanh ve
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
te sai » te tai, te bai, te lai
cua te » cua tu
ke cau » ket cau
sai ky » sac ky
ve cac » va cac, vien cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sai ky lang xa hoi. hieu ((ve cac) or (ke cau)) duc va thanh vi ((dua tren) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sai ky lang xa hoi. hieu ((ve cac) OR (ke cau)) duc va thanh vi ((dua tren) OR (cua te)).
• Adding a wildcard symbol may retrieve word variants: te sai ky lang xa hoi. hieu ((ve cac) or (ke cau)) duc va thanh vi ((dua tren) or (cua te))*.