Perhaps you should try some spelling variations:
lanh tranh » canh tranh, lan tranh, hanh trinh
nhung lang » nhung van, nhanh lang, nhung cong
hieu lang » chieu sang, hieu quang, nhieu tang
hanh mang » nhanh mang, hanh trang, nhanh lang
cua nhung » va nhung
lang tinh » dang tinh, long tinh, bang tinh
doi hieu » doi chieu, doc hieu, doi hien
toan cau » 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: doi hieu lang - ((hanh mang) or (lanh tranh)) cua nhung lang tinh toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi hieu lang - ((hanh mang) OR (lanh tranh)) cua nhung lang tinh toan cau.
• Adding a wildcard symbol may retrieve word variants: doi hieu lang - ((hanh mang) or (lanh tranh)) cua nhung lang tinh toan cau*.