Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dong tri cac snippets" » "dong tai cac snippets", "dong thi cac snippets", "dung tri cac snippets", "dong tri mac snippets", "dong tri dac 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 tri cac 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 tri cac snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dong tri cac snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong tri cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.