Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lang van que snippets" » "dang van que snippets", "tang van que snippets", "hoang van que snippets", "lang van quy snippets", "lang van due snippets", "lang van hue snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("lang van que snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("lang van que snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lang van que snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lang van que snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.