Perhaps you should try some spelling variations:
cua viet » ca viet, hoa viet, cua vat
hieu van » hieu va, thien van, lieu va
hang di » hang doi, hang vi, hang dien
hanh di » hanh vi, hanh de, danh di
su sach » so sach, vu sach
van cam » van nam, van lam, van cau
tu nang » tru nang, tu nong, tu nano
xuc va » duc va, tuc va, luc va
su cao » cu cao, vu cao, su co
x hoi » xa hoi, o hoi, x ho

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) or (su cao)) tu nang x hoi. hieu van cam xuc va ((hanh di) or (hang di)) cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (su cao)) tu nang x hoi. hieu van cam xuc va ((hanh di) OR (hang di)) cua viet.
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (su cao)) tu nang x hoi. hieu van cam xuc va ((hanh di) or (hang di)) cua viet*.