Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"mong dai hoi snippets" » "mong cai hoi snippets", "mong doi hoi snippets", "mong tai hoi snippets", "mong dai hoc snippets", "mong dai hai snippets", "mong 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: (((("mong 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: (((("mong dai hoi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( mong dai hoi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("mong dai hoi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.