Perhaps you should try some spelling variations:
cua viet » ca viet, hoa viet, cua vat
hanh vai » hanh vi, hanh va, hanh tai
vai cua » dai cua, hai cua, lai cua
va hanh » van hanh, va thanh, va danh
vu cham » va cham, vu kham, tu cham
tu sach » thu sach, su sach, te sach
hang ca » hang va, nang cao, hang tai
lang xa » lang ha, dang xay, lang van
ve cham » va cham, ve chat, ve chim
tuc va » thuc va, truc va, tuc xa

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach thieu ((lang xa) or (hang ca)) hoi. hieu ((ve cham) OR (vu cham)) tuc va hanh vai cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach thieu ((lang xa) OR (hang ca)) hoi. hieu ((ve cham) OR (vu cham)) tuc va hanh vai cua viet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach thieu ((lang xa) or (hang ca)) hoi. hieu ((ve cham) OR (vu cham)) tuc va hanh vai cua viet".
• Adding a wildcard symbol may retrieve word variants: tu sach thieu ((lang xa) or (hang ca)) hoi. hieu ((ve cham) OR (vu cham)) tuc va hanh vai cua viet*.