Perhaps you should try some spelling variations:
cua triet » su triet, va triet
cua viet » ca viet, hoa viet, cua vat
cham tuc » nham thuc, pham thuc, tham thuc
ve cham » va cham, ve chat, vu cham
va hanh » van hanh, va thanh, va danh
su cach » su sach, su cac, cuu cach
tu nano » truc nano
tu cach » tu cac
hieu ve » hieu va, hieu van
nano 1 » nano o
tuc va » thuc va, truc va, tuc xa
1 h » 1 ha, 12 h

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((su cach) or (tu cach)) tu nano 1 h. hieu ve cham tuc va hanh vi ((cua triet) or (cua viet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su cach) OR (tu cach)) tu nano 1 h. hieu ve cham tuc va hanh vi ((cua triet) OR (cua viet)).
• Adding a wildcard symbol may retrieve word variants: ((su cach) or (tu cach)) tu nano 1 h. hieu ve cham tuc va hanh vi ((cua triet) or (cua viet))*.