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