Perhaps you should try some spelling variations:
theo chieu » theo tieu, theo chu, thi chieu
tranh thuc » trinh thuc, trang thuc, thanh thuy
thuc dang » thuoc dang, thuc dan, thuc dung
dang cong » dung cong
ho chieu » hoc thieu, doi chieu, mot chieu
van tuan » van ban, anh tuan
van quan » van ban

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) or (theo chieu)) tinh - canh tranh thuc dang cong ((van tuan) or (van quan)) tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (theo chieu)) tinh - canh tranh thuc dang cong ((van tuan) OR (van quan)) tap.
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (theo chieu)) tinh - canh tranh thuc dang cong ((van tuan) or (van quan)) tap*.