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