Perhaps you should try some spelling variations:
thanh vai » thanh hai, thanh van, thanh tai
cua viet » ca viet, cua vat, cua dieu
va thanh » gia thanh, ban thanh, va tinh
cham tuc » nham thuc, pham thuc, tham thuc
vu sach » vu bach, vu khach
ve cham » va cham, ve chat, vu cham
hieu ve » hieu va, hieu van
ly nang » ky nang, ly hang, ly vang
su sach » so sach
tuc va » thuc va, truc va, tuc xa
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: ((vu sach) or (su sach)) ly nang x hoi. hieu ve cham tuc va thanh vai ((cua viet) OR (hoa viet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((vu sach) OR (su sach)) ly nang x hoi. hieu ve cham tuc va thanh vai ((cua viet) OR (hoa viet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((vu sach) or (su sach)) ly nang x hoi. hieu ve cham tuc va thanh vai ((cua viet) OR (hoa viet))".
• Adding a wildcard symbol may retrieve word variants: ((vu sach) or (su sach)) ly nang x hoi. hieu ve cham tuc va thanh vai ((cua viet) OR (hoa viet))*.