Perhaps you should try some spelling variations:
nhung phuong » dung phuong, nhu phuong, truong phuong
thieu sach » thien hach, hieu cach, theo sach
chieu sach » chinh sach, chiet tach, chieu sang
thanh tung » thanh cong
tung cua » trung cua, tuong cua, dung cua
dung ung » dung cong
bac van » bach van, cac van, ban van

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((thieu sach) OR (chieu sach)) - thanh tung cua ((nhung phuong) or (dung ung)) bac van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu sach) OR (chieu sach)) - thanh tung cua ((nhung phuong) OR (dung ung)) bac van ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thieu sach) OR (chieu sach)) - thanh tung cua ((nhung phuong) or (dung ung)) bac van ban".
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu sach) OR (chieu sach)) - thanh tung cua ((nhung phuong) or (dung ung)) bac van ban*.