Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thi hien mon snippets" » "thi lien mon snippets", "thi huyen mon snippets", "thi hue mon snippets", "thi dien mon snippets", "thi hien ton snippets", "thi vien mon 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 hien mon 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 hien mon snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thi hien mon snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thi hien mon snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.