Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"qua ngan can snippets" » "quan ngan can snippets", "cua ngan can snippets", "qua ngay can snippets", "qua ngan han snippets", "qua ngan van snippets", "qua ngan lan 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: (((("qua ngan can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("qua ngan can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( qua ngan can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("qua ngan can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.