Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"fan wu minh snippets" » "fan vu minh snippets", "fan tu minh snippets", "fan lu minh snippets", "can wu minh snippets", "lan wu minh snippets", "fan wu minh slippers"
"locating bug code snippets" » "locating bug code slippers", "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: (((("fan wu minh snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("fan wu minh snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( fan wu minh snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("fan wu minh snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.