Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"trong gi he snippets" » "trong gia he snippets", "trong gio he snippets", "trong giao he snippets", "trong gi de snippets", "trong gi ve snippets", "trong 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: (((("trong 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: (((("trong gi he snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trong gi he snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trong gi he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.