Perhaps you should try some spelling variations:
dung tren » dung trong, dung trung
ban hanh » ban hang
truc ban » thuc ban, truc dan, truc van
cuu tre » cua tre, cau tren, cau treo
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
hanh ve » hanh vi, hanh va, hanh kem
te sai » te tai, te bai, te lai
sai ky » sac ky
ve cau » ke cau, va cau, le cau
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 cau) or (ve cac)) truc ban hanh ve ((dung tren) or (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sai ky lang xa hoi. hieu ((ve cau) OR (ve cac)) truc ban hanh ve ((dung tren) OR (cuu tre)).
• Adding a wildcard symbol may retrieve word variants: te sai ky lang xa hoi. hieu ((ve cau) or (ve cac)) truc ban hanh ve ((dung tren) or (cuu tre))*.