Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tat nhat de snippets" » "tai nhat de snippets", "tot nhat de snippets", "tran nhat de snippets", "tat nhat ve snippets", "tat nhat le snippets", "tat chat deo 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: (((("tat nhat de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tat nhat de snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tat nhat de snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tat nhat de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.