Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"bac vu minh snippets" » "bac vu dinh snippets", "bac van minh snippets", "bac tu minh snippets", "bac va minh snippets", "bac vu 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: (((("bac vu 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: (((("bac vu minh snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( bac vu minh snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("bac vu minh snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.