Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thi phap lee snippets" » "theo phap lee snippets", "thi hai lee snippets", "thi ha lee snippets", "thi phap lenh snippets", "thi phap che snippets", "thi phap ly 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: (((("thi phap lee snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thi phap lee snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thi phap lee snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thi phap lee snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.