Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dong cho tot snippets" » "dung cho tot snippets", "dong co tot snippets", "dong hoc tot snippets", "dong cho mot snippets", "dong cho toa snippets", "dong cho tuoi 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: (((("dong cho tot snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dong cho tot snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dong cho tot snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong cho tot snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.