Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
truong cao » truong dai
trung tuan » trung thanh, trung tam, tran tuan
dung song » dung cong, dung dong, vung song
ho chieu » theo chieu, hoc thieu, doi chieu
song van » hoang van, trong van, duong van
toan tai » doanh tai, toan ban, toan cao
toan tap » toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chieu sach - hanh ((truong cao) or (trung tuan)) dung song van ((toan tai) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - hanh ((truong cao) OR (trung tuan)) dung song van ((toan tai) OR (toan tap)).
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - hanh ((truong cao) or (trung tuan)) dung song van ((toan tai) or (toan tap))*.