Perhaps you should try some spelling variations:
tang hoa » hang hoa, tang ha, tang ho
su triet » su tien, ve triet
hanh tai » thanh tai, hang tai, han tai
hanh vai » hanh vi, hanh va, hanh van
so sach » so sanh, bo sach, co sach
sach ky » sac ky, sach y, sach ty
thuc va » thuc vat, thuc dan, thuc day
hieu ve » hieu va, hieu van
hoa hoi » khoa hoi, hoa hoc, hoa doi
ky tang » ky nang, ky dang, kho tang
su viet » so viet
ve am » va am

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sach ky tang hoa hoi. hieu ve am thuc va ((hanh vai) OR (hanh tai)) ((su triet) or (su viet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ky tang hoa hoi. hieu ve am thuc va ((hanh vai) OR (hanh tai)) ((su triet) OR (su viet))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach ky tang hoa hoi. hieu ve am thuc va ((hanh vai) OR (hanh tai)) ((su triet) or (su viet))*".