Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tong bac cau snippets" » "thong bac cau snippets", "trong bac cau snippets", "dong bac cau snippets", "tong bach cau snippets", "tong ba cau snippets", "tong bac can 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: (((("tong bac 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: (((("tong bac cau snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tong bac cau snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tong bac cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.