Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chi phong so snippets" » "khi phong so snippets", "chin phuong so snippets", "thi phuong so snippets", "chi phong mo snippets", "chi phong cho snippets", "chi cong so 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 phong 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 phong so snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chi phong so snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chi phong so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.