Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"pham soc voi snippets" » "cham soc voi snippets", "pham ngoc voi snippets", "pham sach voi snippets", "pham hoc voi snippets", "pham so voi snippets", "pham som voi 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: (((("pham soc voi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("pham soc voi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( pham soc voi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("pham soc voi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.