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