Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"van anh lua snippets" » "van thanh lua snippets", "van minh lua snippets", "tuan anh lua snippets", "van anh cua snippets", "van hanh luat snippets", "van anh tuan snippets", "van anh lua slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

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: "((((\"van anh lua snippets\") OR (\"python using java snippets\"))) OR (\"locating bug code snippets\"))~".
• Removing quotes may allow a broader search: (((( van anh lua snippets ) OR ( python using java snippets ))) OR ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("van anh lua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets"))*.