Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hoc chieu » hoc thieu, ho chieu, hoc hien
trinh van » trinh han, trinh quan, trinh toan
bang cong » dang cong, bang song, hang cong
cong vang » cong lang, cong quang, cong ngang
vang phan » van phan, nang phan, quang phan
trinh va » trinh vat, trinh ve, trinh vi
phan tap » phan lap, han tap, pha tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc chieu sach - hanh ((trinh va) or (trinh van)) bang cong vang phan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu sach - hanh ((trinh va) OR (trinh van)) bang cong vang phan tap.
• Adding a wildcard symbol may retrieve word variants: hoc chieu sach - hanh ((trinh va) or (trinh van)) bang cong vang phan tap*.