Perhaps you should try some spelling variations:
tu cach » tu cac
hang vi » hang va, hanh vi, hang di
va hang » van hang, va nang, va lang
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, nang ma
su sach » so sach, vu sach
cuu tre » cua tre, cau tren, cau treo
v nang » va nang, vu nang, van nang
vi cuu » vi luu, vinh cuu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu cach) or (su sach)) v nang xa hoi. hieu ve ((cham soc) or (cam xuc)) va hang vi cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu cach) OR (su sach)) v nang xa hoi. hieu ve ((cham soc) OR (cam xuc)) va hang vi cuu tre.
• Adding a wildcard symbol may retrieve word variants: ((tu cach) or (su sach)) v nang xa hoi. hieu ve ((cham soc) or (cam xuc)) va hang vi cuu tre*.