Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
thong cong » trong cong, tong cong, thong thong
trang va » hang va
tran van » luan van
cong tan » cong tac, cong san, cong thanh
tan phan » toan phan, than phan, van phan
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: ho ((chieu tinh) or (chinh sach)) - hanh ((trang va) OR (tran van)) thong cong tan phan cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu tinh) OR (chinh sach)) - hanh ((trang va) OR (tran van)) thong cong tan phan cac.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu tinh) or (chinh sach)) - hanh ((trang va) OR (tran van)) thong cong tan phan cac".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu tinh) or (chinh sach)) - hanh ((trang va) OR (tran van)) thong cong tan phan cac*.