Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"pho bach cau snippets" » "pho bac cau snippets", "pham bach cau snippets", "pho trach cau snippets", "pho bach mai snippets", "pho sach cap 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: (((("pho bach cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("pho bach cau snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( pho bach cau snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("pho bach cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.