Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"giai tich do snippets" » "giai tich du snippets", "giai tich so snippets", "giai tich co snippets", "giao tich do snippets", "gia tich do snippets", "gian tich 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: (((("giai tich do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("giai tich do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( giai tich do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("giai tich do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.