Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"kieu tinh do snippets" » "lieu tinh do snippets", "trieu tinh do snippets", "diep tinh do snippets", "kieu trinh do snippets", "kieu tinh doi snippets", "kieu tinh da 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: (((("kieu tinh 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: (((("kieu tinh do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( kieu tinh do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("kieu tinh do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.