Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"choi tre ho snippets" » "cho tre ho snippets", "tuoi tre ho snippets", "khoe tre ho snippets", "choi te ho snippets", "choi tre 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: (((("choi tre ho 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 ho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( choi tre ho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("choi tre ho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.