Perhaps you should try some spelling variations:
trong trung » truong trung, trong truong, trong rung
hanh trinh » canh tranh, hanh chinh
thieu xanh » chieu xanh, thien anh, thien danh
khong cong » khong cang, chong cong, khong con
thong cong » trong cong, tong cong, thong thong
hieu manh » chieu xanh, hieu nganh, dieu hanh
trinh cua » tinh cua, trinh luat, trinh quan
trung lap » trung cap, truong lam, truong lop

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 xanh) or (hieu manh)) - hanh trinh cua ((khong cong) OR (thong cong)) trong trung lap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu xanh) OR (hieu manh)) - hanh trinh cua ((khong cong) OR (thong cong)) trong trung lap*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thieu xanh) or (hieu manh)) - hanh trinh cua ((khong cong) OR (thong cong)) trong trung lap*".