Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"giang van vo snippets" » "hoang van vo snippets", "dang van vo snippets", "gian dan vo snippets", "giang van von snippets", "giang van vu snippets", "giang van do 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: (((("giang van vo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("giang van vo snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( giang van vo snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("giang van vo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.