Perhaps you should try some spelling variations:
cua triet » cua viet, va triet
nam thuc » nam thuoc, am thuc, nam thu
vat hanh » vat thanh, van hanh, va hanh
hanh hai » thanh hai, nhanh hai, hang hai
su triet » su viet, su tien, ve triet
te sach » toc sach
lang ha » long ha
hieu he » hieu ve, hiem he, hieu le
y lang » o lang, _ lang, tay lang
ha hoi » hoa hoi, ha noi, xa hoi
he nam » ha nam, nghe nam

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 y lang ha hoi. hieu he nam thuc vat hanh hai ((cua triet) or (su triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y lang ha hoi. hieu he nam thuc vat hanh hai ((cua triet) OR (su triet)).
• Adding a wildcard symbol may retrieve word variants: te sach y lang ha hoi. hieu he nam thuc vat hanh hai ((cua triet) or (su triet))*.