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