Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"bach cau so snippets" » "bac cau so snippets", "bach mai so snippets", "sach cap so snippets", "bach cau do snippets", "bach cau o snippets", "bach cao so 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: (((("bach cau 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: (((("bach cau so snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( bach cau so snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("bach cau so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.