Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thu dieu du snippets" » "thuat dieu du snippets", "thu hien du snippets", "he dieu du snippets", "thu diem du snippets", "thu dieu d snippets", "thu dieu vu 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 dieu du 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 dieu du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thu dieu du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thu dieu du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.