Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"choi tre can snippets" » "cho tre can snippets", "tuoi tre can snippets", "khoe tre can snippets", "choi tre dan snippets", "choi tiep can snippets", "choi tiem can 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: (((("choi tre can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("choi tre can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( choi tre can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("choi tre can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.