Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
cong luong » cong thuong, nang luong, cong dong
hieu manh » chieu xanh, hieu nganh, dieu hanh
vat nhung » va nhung, vap nhung, vai nhung
hoc hieu » hoc thieu, hoc hien, doc hieu
ve nhung » va nhung, tu nhung
toan cau » toan ban, toan tap, toan tai
toan cao » toan ban, toan tap

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 ((vat nhung) or (ve nhung)) cong luong ((toan cau) or (toan cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hieu manh - hanh trinh ((vat nhung) OR (ve nhung)) cong luong ((toan cau) OR (toan cao)).
• Adding a wildcard symbol may retrieve word variants: hoc hieu manh - hanh trinh ((vat nhung) or (ve nhung)) cong luong ((toan cau) or (toan cao))*.