Perhaps you should try some spelling variations:
nhung tuong » nhung huong, nhung phuong, hung vuong
theo chieu » theo tieu, ho chieu, theo chu
chieu sach » chinh sach, chiet tach, chieu sang
hanh nang » anh nang, ganh nang, hanh mang
qua nhung » quan nhung, cua nhung, qua chung
tuong dan » huong dan, tung dan, xuong dan
nang qua » nang quan, nang dua, nang cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo chieu sach - hanh nang qua nhung tuong dan ((toan ban) or (van ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sach - hanh nang qua nhung tuong dan ((toan ban) OR (van ban)).
• Adding a wildcard symbol may retrieve word variants: theo chieu sach - hanh nang qua nhung tuong dan ((toan ban) or (van ban))*.