Perhaps you should try some spelling variations:
nhung huong » nhung phuong, nhung tuong, nhung cong
thieu sach » chieu sach, thien hach, hieu cach
hoc thieu » toc thieu, hoc hien
tuong cua » truong cua, huong cua, thong cua
tung cua » trung cua, dung cua, tang cua
than cau » phan cau, than cap, thanh chau
toan cau » toan cao, toan ban, toan tap

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

• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sach - thanh ((tung cua) OR (tuong cua)) nhung huong dan ((than cau) OR (toan cau))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu sach - thanh ((tung cua) OR (tuong cua)) nhung huong dan ((than cau) or (toan cau))~".
• Adding a wildcard symbol may retrieve word variants: hoc thieu sach - thanh ((tung cua) OR (tuong cua)) nhung huong dan ((than cau) or (toan cau))*.