Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thu dang deo snippets" » "thu hang deo snippets", "thu bang deo snippets", "thu dong deo snippets", "thu dang do snippets", "thu dang de snippets", "thu dang dieu 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 dang deo 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 dang deo snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thu dang deo snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thu dang deo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.