Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"mong duc hue snippets" » "hong duc hue snippets", "cong duc hue snippets", "mong du hue snippets", "mong duc huy snippets", "mong duy hue snippets", "mong duc hung 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 duc hue 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 duc hue snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( mong duc hue snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("mong duc hue snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.