Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dong phu da snippets" » "dong phuc da snippets", "dung phu da snippets", "cong phu da snippets", "dong phu la snippets", "dong phu ha 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 phu da 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 phu da snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dong phu da snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong phu da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.