Perhaps you should try some spelling variations:
hoc nghien » hoc hien
hanh trinh » canh tranh, hanh chinh
cong thanh » dong thanh, cong trinh, cong tan
hoc nhiet » hoc thiet, hoc hien, hoc viet
trinh cua » tinh cua, trinh luat, trinh quan
cua thong » cua thuong, cua khong, cua tong
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 nhiet) or (hoc nghien)) tach - hanh trinh cua thong ((cong dong) or (cong thanh)) toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc nhiet) OR (hoc nghien)) tach - hanh trinh cua thong ((cong dong) OR (cong thanh)) toan ban.
• Adding a wildcard symbol may retrieve word variants: ((hoc nhiet) or (hoc nghien)) tach - hanh trinh cua thong ((cong dong) or (cong thanh)) toan ban*.