Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phu chon cac snippets" » "phu chung cac snippets", "phu tho cac snippets", "phu khoa cac snippets", "phu cho cac snippets", "phu thong cac snippets", "phu hoc cac 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: (((("phu chon cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phu chon cac snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phu chon cac snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phu chon cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.