Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"kieu gi he snippets" » "dieu gi he snippets", "hieu gia he snippets", "kien gia he snippets", "kieu gi de snippets", "kieu gi ve snippets", "kieu vi he 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: (((("kieu gi he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("kieu gi he snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( kieu gi he snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("kieu gi he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.