Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tri tinh don snippets" » "tri kinh don snippets", "trieu tinh don snippets", "thai tinh don snippets", "tri tinh son snippets", "tri tinh doi snippets", "tri tin don 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: (((("tri tinh don snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tri tinh don snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tri tinh don snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tri tinh don snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.