Perhaps you should try some spelling variations:
hanh di » hanh vi, hanh de, hang di
va hanh » van hanh, va thanh, va danh
sach ky » sach y, sach ty, sach kem
nang ma » tang ma, sang ma, nang cao
ma hoi » mai hoi, xa hoi, ma hoa
sac ky » cac ky, sai ky
ve cam » ve cham, ve cac, ve cai
va cam » va cham, va cac, va cao
xuc va » duc va, tuc va, luc va
di cua » dai cua, doi cua, de cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu ((sach ky) OR (sac ky)) nang ma hoi. hieu ((ve cam) or (va cam)) xuc va hanh di cua vat~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu ((sach ky) OR (sac ky)) nang ma hoi. hieu ((ve cam) OR (va cam)) xuc va hanh di cua vat*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu ((sach ky) OR (sac ky)) nang ma hoi. hieu ((ve cam) or (va cam)) xuc va hanh di cua vat*".