Perhaps you should try some spelling variations:
nham thuc » nhan thuc, nam thuc, nham thu
tinh hai » tinh thai, tinh chat, trinh han
cham tuc » pham thuc, tham thuc, cham soc
tu sach » thu sach, su sach, te sach
va tinh » may tinh
cua cay » cua cac
sach ty » sach y, sach tu, sach thu
hieu ve » hieu va, hieu van
ty nang » ky nang, ty xang, ty hang
cua te » cua tu
x hoi » xa hoi, o hoi, x ho

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 ty nang x hoi. hieu ve ((cham tuc) OR (nham thuc)) va tinh hai ((cua te) or (cua cay))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty nang x hoi. hieu ve ((cham tuc) OR (nham thuc)) va tinh hai ((cua te) OR (cua cay)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ty nang x hoi. hieu ve ((cham tuc) OR (nham thuc)) va tinh hai ((cua te) or (cua cay))".
• Adding a wildcard symbol may retrieve word variants: tu sach ty nang x hoi. hieu ve ((cham tuc) OR (nham thuc)) va tinh hai ((cua te) or (cua cay))*.