Perhaps you should try some spelling variations:
thien hach » thien thanh, hien hanh
hanh tranh » canh tranh, hanh trinh, lanh tranh
hanh trang » thanh trung, canh tranh, hanh trinh
hoc thien » hoc hien, hoc thieu, hoc thiet
cua nhung » va nhung
cong dan » cong san, cong tan, cong dong
toan cau » 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 thien hach - ((hanh tranh) or (hanh trang)) cua nhung ((cong dan) OR (huong dan)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thien hach - ((hanh tranh) OR (hanh trang)) cua nhung ((cong dan) OR (huong dan)) toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thien hach - ((hanh tranh) or (hanh trang)) cua nhung ((cong dan) OR (huong dan)) toan cau".
• Adding a wildcard symbol may retrieve word variants: hoc thien hach - ((hanh tranh) or (hanh trang)) cua nhung ((cong dan) OR (huong dan)) toan cau*.