Perhaps you should try some spelling variations:
theo chieu » theo tieu, theo chu, thi chieu
hanh tranh » canh tranh, hanh trinh, hanh trang
tranh chua » tranh cua, trinh chuan, tranh chap
chua xang » chua nang, chuc nang, chu bang
xang song » nang song, bang song, lang song
song than » sang than, long than, song nhan
ho chieu » hoc thieu, doi chieu, mot chieu
toan cao » toan ban
toan tap » toan 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 - hanh tranh chua xang song than ((toan cao) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (theo chieu)) tinh - hanh tranh chua xang song than ((toan cao) OR (toan tap)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) OR (theo chieu)) tinh - hanh tranh chua xang song than ((toan cao) or (toan tap))".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) OR (theo chieu)) tinh - hanh tranh chua xang song than ((toan cao) or (toan tap))*.