Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"bom van cua snippets" » "tom van cua snippets", "bom va cua snippets", "gom van cua snippets", "bom vang cua snippets", "bom ban cua snippets", "bom dan cua 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: (((("bom van cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("bom van cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( bom van cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("bom van cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.