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