Perhaps you should try some spelling variations:
loai hoc » logic hoc, loai khoa, dai hoc
hanh vai » hanh vi, hanh va, hanh tai
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
ky sang » ky nang, ky dang, ky tang
lai hoa » dai hoa
hieu su » hieu sau, tieu su, hieu so
su chao » su cao, sau chan
va hanh » van hanh, va thanh, va danh
vai cua » dai cua, hai cua, lai cua
cua cu » cua chu, cua cau, cua su
xu va » xu van, tu va, su va

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 ky sang ((lai hoa) OR (loai hoc)). hieu su chao xu va hanh vai cua cu~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky sang ((lai hoa) OR (loai hoc)). hieu su chao xu va hanh vai cua cu".
• Adding a wildcard symbol may retrieve word variants: tu sach ky sang ((lai hoa) OR (loai hoc)). hieu su chao xu va hanh vai cua cu*.