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 thong » anh thong, hanh trong, hang thong
tuong dan » huong dan, tung dan, xuong dan
thong va » thong cua, truong va, thong qua
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: theo chieu sach - hanh thong va nhung tuong dan ((toan tap) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu sach - hanh thong va nhung tuong dan ((toan tap) OR (toan ban))*.