Perhaps you should try some spelling variations:
thuat sac » thuat sach, thuat san, thuat tac
dinh vi » dinh ve, dinh viet, dinh tri
va dinh » van dinh, va kinh, va tinh
ve cham » va cham, ve chat, vu cham
may hoa » may khoa, ma hoa, day hoa
ky mang » ky nang, ke mang, ky dang
ve cam » ve cac, va cam, ve cai
sac ky » cac ky, sai ky
xuc va » duc va, tuc va, luc va
cua tu » cua tuc, cua su, cua te
cua cu » cua chu, cua cau, cua su

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuat sac ky mang may hoa. hieu ((ve cam) or (ve cham)) xuc va dinh vi ((cua tu) OR (cua cu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat sac ky mang may hoa. hieu ((ve cam) OR (ve cham)) xuc va dinh vi ((cua tu) OR (cua cu))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat sac ky mang may hoa. hieu ((ve cam) or (ve cham)) xuc va dinh vi ((cua tu) OR (cua cu))*".