Perhaps you should try some spelling variations:
cham tuc » nham thuc, pham thuc, tham thuc
cau cua » cau qua, ca cua, cu cua
dau cua » dai cua, day cua, dan cua
va tinh » may tinh
va dinh » van dinh, va kinh, vu dinh
vu cham » va cham, vu kham, tu cham
hieu vu » hieu va, hieu ve, hieu su
nang ma » tang ma, sang ma, nang cao
sac ky » cac ky, sai ky
ma hoi » mai hoi, xa hoi, ma hoa
te sac » te sach, te cac, te san

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sac ky nang ma hoi. hieu vu cham tuc ((va dinh) OR (va tinh)) ((dau cua) or (cau cua)) triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sac ky nang ma hoi. hieu vu cham tuc ((va dinh) OR (va tinh)) ((dau cua) OR (cau cua)) triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sac ky nang ma hoi. hieu vu cham tuc ((va dinh) OR (va tinh)) ((dau cua) or (cau cua)) triet".
• Adding a wildcard symbol may retrieve word variants: te sac ky nang ma hoi. hieu vu cham tuc ((va dinh) OR (va tinh)) ((dau cua) or (cau cua)) triet*.