Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trinh, hanh trang
hoc thieu » hoc hien
tranh cua » doanh cua, manh cua
cua khong » hua khong, cua phuong, cua thuong
cang van » tang van, lang van, can van
dang van » hoang van, hang va
tuan cau » toan cau, quan cau, tuan cu

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc thieu) OR (toc thieu)) quang - hanh tranh cua khong ((cang van) or (dang van)) tuan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thieu) OR (toc thieu)) quang - hanh tranh cua khong ((cang van) OR (dang van)) tuan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc thieu) OR (toc thieu)) quang - hanh tranh cua khong ((cang van) or (dang van)) tuan cau".
• Adding a wildcard symbol may retrieve word variants: ((hoc thieu) OR (toc thieu)) quang - hanh tranh cua khong ((cang van) or (dang van)) tuan cau*.