Perhaps you should try some spelling variations:
cong ngang » cong nhan, cong quang, cong lang
hanh trinh » canh tranh
ngang quan » nang quan, nganh quan, tang quan
hieu manh » chieu xanh, hieu nganh, dieu hanh
cua trong » cua truong, cua trung, qua trong
hoc hieu » hoc thieu, hoc hien, doc hieu
quan ha » quan he

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hieu manh - ((hanh trinh) OR (hanh chinh)) cua trong cong ngang quan ha~".
• Adding a wildcard symbol may retrieve word variants: hoc hieu manh - ((hanh trinh) OR (hanh chinh)) cua trong cong ngang quan ha*.