Perhaps you should try some spelling variations:
thien thanh » tien thanh, thi thanh, hien hanh
hanh trinh » canh tranh, hanh chinh
trinh chua » trinh chuan, trinh cua, trinh chu
thien anh » thien danh, thien chanh, thien hach
chua xang » chua nang, chuc nang, chu bang
xang cong » dang cong, bang cong, hang cong
tien anh » tieng anh, tien manh, dien anh
cong dan » cong san, cong tan, huong dan
dan phan » doan phan, dan chan, van phan
phan cau » phan dau, phan cac, phan tu

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 anh) OR (thien thanh))) or (tien anh)) - hanh trinh chua xang cong dan phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((((thien anh) OR (thien thanh))) OR (tien anh)) - hanh trinh chua xang cong dan phan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((((thien anh) OR (thien thanh))) or (tien anh)) - hanh trinh chua xang cong dan phan cau".
• Adding a wildcard symbol may retrieve word variants: hoc ((((thien anh) OR (thien thanh))) or (tien anh)) - hanh trinh chua xang cong dan phan cau*.