Perhaps you should try some spelling variations:
thanh vai » thanh hai, thanh van, thanh tai
va thanh » gia thanh, ban thanh, va tinh
sach ky » sach y, sach ty, sach kem
cam luc » cam xuc, cau luc
hieu ve » hieu va, hieu van
mai hoi » mai khoi, dai hoi, lai hoi
vai cua » dai cua, hai cua, lai cua
ve cam » ve cham, ve cac, va cam
sac ky » cac ky, sai ky
luc va » duc va, tuc va, loc va

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 ky) OR (sac ky)) nang ((ma hoa) or (mai hoi)). hieu ve cam luc va thanh vai cua vat~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach ky) OR (sac ky)) nang ((ma hoa) OR (mai hoi)). hieu ve cam luc va thanh vai cua vat.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach ky) OR (sac ky)) nang ((ma hoa) or (mai hoi)). hieu ve cam luc va thanh vai cua vat".
• Adding a wildcard symbol may retrieve word variants: tu ((sach ky) OR (sac ky)) nang ((ma hoa) or (mai hoi)). hieu ve cam luc va thanh vai cua vat*.