Perhaps you should try some spelling variations:
nhung huong » nhung phuong, nhung tuong, nhung cong
kinh sach » sinh sach, dinh sach, tinh sach
trung cua » truong cua, trung tuan, dung cua
trung cap » truong cao, trung tam
dung cong » dung trong
hoc kinh » hoc sinh, luoc kinh
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc kinh sach - manh ((trung cua) OR (trung cap)) ((nhung huong) or (dung cong)) tinh toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc kinh sach - manh ((trung cua) OR (trung cap)) ((nhung huong) OR (dung cong)) tinh toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc kinh sach - manh ((trung cua) OR (trung cap)) ((nhung huong) or (dung cong)) tinh toan ban".
• Adding a wildcard symbol may retrieve word variants: hoc kinh sach - manh ((trung cua) OR (trung cap)) ((nhung huong) or (dung cong)) tinh toan ban*.