Perhaps you should try some spelling variations:
thanh vai » thanh hai, thanh van, thanh tai
nam thuoc » nam thu, nha thuoc, cay thuoc
cua triet » cua viet, su triet, va triet
xang hoa » hang hoa, nang hoa, hoang hoa
nam thuc » am thuc, nam thu, nam tu
va thanh » gia thanh, ban thanh, va tinh
te sach » toc sach
sach ty » sach y, sach tu, sach thu
hoa hoi » khoa hoi, hoa hoc, hoa doi
hieu he » hieu ve, hiem he, hieu le
vai cua » dai cua, hai cua, lai cua

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 ty xang hoa hoi. hieu he ((nam thuc) or (nam thuoc)) va thanh vai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ty xang hoa hoi. hieu he ((nam thuc) OR (nam thuoc)) va thanh vai cua triet.
• Adding a wildcard symbol may retrieve word variants: te sach ty xang hoa hoi. hieu he ((nam thuc) or (nam thuoc)) va thanh vai cua triet*.