Perhaps you should try some spelling variations:
hanh vai » hanh vi, hanh va, hanh tai
ve cham » va cham, ve chat, vu cham
vai cuu » vai cua
va hanh » van hanh, va thanh, va danh
cuu tre » cua tre, cau tren, cau treo
sach ty » sach y, sach tu, sach thu
nang xa » nang x, lang xa, nang ma
sac ky » cac ky, sai ky
ve cai » va cai, ve cac, ve tai

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

• Performing a fuzzy search may retrieve terms with similar spellings: su ((sach ty) or (sac ky)) nang xa hoi. hieu ((ve cai) or (ve cham)) duc va hanh vai cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su ((sach ty) OR (sac ky)) nang xa hoi. hieu ((ve cai) OR (ve cham)) duc va hanh vai cuu tre.
• Adding a wildcard symbol may retrieve word variants: su ((sach ty) or (sac ky)) nang xa hoi. hieu ((ve cai) or (ve cham)) duc va hanh vai cuu tre*.