Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thi trien du snippets" » "thi thien du snippets", "thi tren du snippets", "thi lien du snippets", "thi trien cua snippets", "thi trien quy snippets", "thi truyen du 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: (((("thi trien 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: (((("thi trien du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thi trien du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thi trien du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.