Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
hanh thong » anh thong, hanh trong, hinh thong
hang thong » hang thuong, hang khong, mang thong
luong cong » dung cong, trong cong, cong cong
cong luan » tong luan, cong tuan, dong luan
tu luong » tu tuong, cu luong, te luong
va tinh » may tinh

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 (va tinh)) - ((hanh thong) OR (hang thong)) tu luong cong luan van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu tinh) OR (va tinh)) - ((hanh thong) OR (hang thong)) tu luong cong luan van ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((chieu tinh) or (va tinh)) - ((hanh thong) OR (hang thong)) tu luong cong luan van ban".
• Adding a wildcard symbol may retrieve word variants: ho ((chieu tinh) or (va tinh)) - ((hanh thong) OR (hang thong)) tu luong cong luan van ban*.