Perhaps you should try some spelling variations:
nham thuc » nhan thuc, nam thuc, nham thu
cua viet » ca viet, hoa viet, cua vat
han nang » phan nang, ban nang, han yang
van nang » van quang, van ban, van dong
kinh vat » sinh vat, dinh vat, kinh va
cham tuc » pham thuc, tham thuc, cham soc
vat cua » mat cua, bat cua, dat cua
va kinh » va tinh, qua kinh
te sach » toc sach
hieu ve » hieu va, hieu van
ma hoi » mai hoi, xa hoi, ma hoa

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ((han nang) OR (van nang)) ma hoi. hieu ve ((cham tuc) or (nham thuc)) va kinh vat cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((han nang) OR (van nang)) ma hoi. hieu ve ((cham tuc) OR (nham thuc)) va kinh vat cua viet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((han nang) OR (van nang)) ma hoi. hieu ve ((cham tuc) or (nham thuc)) va kinh vat cua viet".
• Adding a wildcard symbol may retrieve word variants: te sach ((han nang) OR (van nang)) ma hoi. hieu ve ((cham tuc) or (nham thuc)) va kinh vat cua viet*.