Perhaps you should try some spelling variations:
chieu sach » chinh sach, chieu sang, chieu xanh
cong thong » cong thuong, cong trong, dong thong
thong phan » thong quan, chong phap, thong van
thieu anh » thien anh, chieu xanh, thien danh
thuy dung » thuy duong, thuoc dung, huy duong
dung cong » dung trong
tinh dan » trinh dan, tinh da, binh dan
dan thuy » dang thuy, dan thuc, dan thu
phan cac » nhan cach, phan dau, phan lap

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 anh) or (((chieu sach) OR (chiet tach)))) - tinh dan thuy dung cong thong phan cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu anh) OR (((chieu sach) OR (chiet tach)))) - tinh dan thuy dung cong thong phan cac.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thieu anh) or (((chieu sach) OR (chiet tach)))) - tinh dan thuy dung cong thong phan cac".
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu anh) or (((chieu sach) OR (chiet tach)))) - tinh dan thuy dung cong thong phan cac*.