Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
chieu sach » chinh sach, chiet tach, chieu sang
hanh tang » hanh trang, anh tang, hanh mang
tang luan » dung luan
luan dong » luan cong, quan dong, luan nong
dong cong » duong cong, dung cong, dang cong
trinh do » trinh ky
do ban » doi ban, co ban, do ben

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 tinh) or (chieu sach)) - hanh tang luan dong cong trinh do ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu tinh) OR (chieu sach)) - hanh tang luan dong cong trinh do ban.
• Adding a wildcard symbol may retrieve word variants: theo ((chieu tinh) or (chieu sach)) - hanh tang luan dong cong trinh do ban*.