Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hoc tin soi snippets" » "hoc tan soi snippets", "hoc tieng soi snippets", "hoc hien soi snippets", "hoc tin so snippets", "hoc tin hoi 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: (((("hoc tin soi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hoc tin soi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hoc tin soi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoc tin soi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.