Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
thong cong » trong cong, tong cong, thong thong
trinh cua » tinh cua, trinh luat, trinh quan
cua thong » cua thuong, cua khong, cua tong
hoc tien » hoc tieng, hoc hien, hoc tren
hoc vien » hoc hien, hoc viet, hoc tieng
cong san » cong tac
toan cao » toan tap
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc tien) OR (hoc vien)) manh - hanh trinh cua thong cong san ((toan cao) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc tien) OR (hoc vien)) manh - hanh trinh cua thong cong san ((toan cao) OR (toan ban)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc tien) OR (hoc vien)) manh - hanh trinh cua thong cong san ((toan cao) or (toan ban))".
• Adding a wildcard symbol may retrieve word variants: ((hoc tien) OR (hoc vien)) manh - hanh trinh cua thong cong san ((toan cao) or (toan ban))*.