Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thu gan doi snippets" » "thu ngan doi snippets", "thu ban doi snippets", "thu san doi snippets", "thu gap doi snippets", "thu van doi snippets", "thu quan doi 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: (((("thu gan doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thu gan doi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thu gan doi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thu gan doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.