Perhaps you should try some spelling variations:
hanh trinh » hanh chinh
nhan thong » nhan trong, nha thong, nhan tong
nhan khong » nhanh chong, nganh khong, nhan khoa
cong luong » cong thuong, nang luong, cong dong
hieu manh » chieu xanh, hieu nganh, dieu hanh
hoc hieu » hoc thieu, hoc hien, doc hieu
luong va » dung va
va ban » van ban, va bai, va bao

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

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