Perhaps you should try some spelling variations:
dang xay » dang van, van xay
van hanh » van thanh, ban hanh, van anh
hieu ve » hieu va, hieu van
xuc van » duc van, luc van, xuc ban
lang xa » lang ha, lang van
cua tre » cuu tre, cua triet, dua tren
hanh de » hanh ve, hanh kem
te sai » te tai, te bai, te lai
ve cam » ve cham, ve cac, va cam
sai ky » sac ky
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 sai ky ((lang xa) or (dang xay)) hoi. hieu ve cam xuc van hanh de ((cua tre) OR (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sai ky ((lang xa) OR (dang xay)) hoi. hieu ve cam xuc van hanh de ((cua tre) OR (cua te)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sai ky ((lang xa) or (dang xay)) hoi. hieu ve cam xuc van hanh de ((cua tre) OR (cua te))".
• Adding a wildcard symbol may retrieve word variants: te sai ky ((lang xa) or (dang xay)) hoi. hieu ve cam xuc van hanh de ((cua tre) OR (cua te))*.