Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chung ve mon snippets" » "chung vi mon snippets", "chung cu mon snippets", "chung tu mon snippets", "chung ve moi snippets", "chung ve mot snippets", "chung me mon 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: (((("chung ve mon snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("chung ve mon snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chung ve mon snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chung ve mon snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.