Perhaps you should try some spelling variations:
thong hoang » phuong hoang, thong thong, khung hoang
chieu sach » chinh sach, chiet tach, chieu sang
hoc chieu » hoc thieu, ho chieu, hoc hien
hanh mang » nhanh mang, hanh trang, nhanh lang
hoang van » hang va
van nang » van quang, van ban, van dong
van chat » cao chat

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 mang ((luan van) or (van nang)) thong hoang van chat~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu sach - hanh mang ((luan van) OR (van nang)) thong hoang van chat.
• Adding a wildcard symbol may retrieve word variants: hoc chieu sach - hanh mang ((luan van) or (van nang)) thong hoang van chat*.