Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dong tinh re snippets" » "dong kinh re snippets", "dong tin re snippets", "cong tinh re snippets", "dong tinh he snippets", "dong tinh tren snippets", "dong tinh yeu 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 tinh re 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 tinh re snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dong tinh re snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong tinh re snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.