Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trinh, hanh trang
thang cong » thanh cong, thong cong, hang cong
thang long » thanh cong
hoc chieu » hoc thieu, hoc hien, hoc dieu
tranh cua » doanh cua, manh cua
ho chieu » theo chieu, hoc thieu, doi chieu
dan toan » van toan, dan than, manh toan
toan cao » toan ban, toan tap

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) or (ho chieu)) tinh - hanh tranh cua ((thang cong) OR (thang long)) dan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc chieu) OR (ho chieu)) tinh - hanh tranh cua ((thang cong) OR (thang long)) dan toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc chieu) or (ho chieu)) tinh - hanh tranh cua ((thang cong) OR (thang long)) dan toan cao".
• Adding a wildcard symbol may retrieve word variants: ((hoc chieu) or (ho chieu)) tinh - hanh tranh cua ((thang cong) OR (thang long)) dan toan cao*.