Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chi kinh so snippets" » "chi minh so snippets", "chi binh so snippets", "che kinh so snippets", "chi dinh so snippets", "chi kinh co snippets", "chi kinh do 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: (((("chi kinh so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("chi kinh so snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chi kinh so snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chi kinh so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.