Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"giao dan vo snippets" » "gian dan vo snippets", "giao dat vo snippets", "giao dien vo snippets", "giao dan va snippets", "giao dan ve snippets", "giao dan mo 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: (((("giao dan 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: (((("giao dan vo snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( giao dan vo snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("giao dan vo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.