Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"vit hang ca snippets" » "viet hang ca snippets", "vinh hang ca snippets", "van hang ca snippets", "vit hang va snippets", "vit nang cao snippets", "vit hang tai 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: (((("vit hang ca snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("vit hang ca snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( vit hang ca snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("vit hang ca snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.