Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thi mac nghe snippets" » "thi cac nghe snippets", "thi tac nghen snippets", "thi van nghe snippets", "thoi mac nghe snippets", "thi mai nghe snippets", "tri mac nghe 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: (((("thi mac nghe snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thi mac nghe snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thi mac nghe snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thi mac nghe snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.