Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"trong can le snippets" » "trong canh le snippets", "trong chan le snippets", "trong cac le snippets", "trong can len snippets", "trong ban le snippets", "trong van le 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 can le 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 can le snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trong can le snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trong can le snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.