Perhaps you should try some spelling variations:
tinh hoi » trinh hoi, tinh hoc, tinh hai
va tinh » may tinh
cam tuc » cam xuc, cam tu, nam thuc
hieu ve » hieu va, hieu van
mai hoi » mai khoi, dai hoi, lai hoi
sach ty » sach tu, sach thu, xach tay
hoi cua » hoi chuc
ve cam » ve cham, ve cac, va cam
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 y) or (sach ty)) nang ((ma hoa) or (mai hoi)). hieu ve cam tuc va tinh hoi cua vat~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach y) OR (sach ty)) nang ((ma hoa) OR (mai hoi)). hieu ve cam tuc va tinh hoi cua vat.
• Adding a wildcard symbol may retrieve word variants: tu ((sach y) or (sach ty)) nang ((ma hoa) or (mai hoi)). hieu ve cam tuc va tinh hoi cua vat*.