Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"don tam hoi snippets" » "dong tam hoi snippets", "dong tai hoi snippets", "don tam hon snippets", "don nam hoi snippets", "don tam ho 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: (((("don tam hoi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("don tam hoi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( don tam hoi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("don tam hoi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.