Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"de tinh core snippets" » "de tinh co snippets", "de tio2 core snippets", "den tinh core snippets", "ve tinh core snippets", "he tinh core snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code 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: (((("de tinh core snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("de tinh core snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( de tinh core snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("de tinh core snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.