Perhaps you should try some spelling variations:
cua viet » ca viet, hoa viet, cua vat
va triet » va thiet, va trien, ve triet
manh hai » lanh hai, minh hai, thanh hai
nghe nam » nghe lam, nghiep nam, nghe nano
nang hoa » nang hoat, hang hoa, nang hoc
thuc va » thuc vat, thuc dan, thuc day
va manh » van manh, va danh, va hanh
hoa hoi » khoa hoi, hoa hoc, hoa doi
he nam » ha nam
sac ky » cac ky, sai ky
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 hoa hoi. hieu ((he nam) or (nghe nam)) thuc va manh hai ((va triet) or (cua viet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sac ky nang hoa hoi. hieu ((he nam) OR (nghe nam)) thuc va manh hai ((va triet) OR (cua viet)).
• Adding a wildcard symbol may retrieve word variants: te sac ky nang hoa hoi. hieu ((he nam) or (nghe nam)) thuc va manh hai ((va triet) or (cua viet))*.