Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"gian hieu mo snippets" » "gian viet mo snippets", "van hieu mo snippets", "tin hieu mo snippets", "gian hieu moi snippets", "gian hieu mot snippets", "gian hieu so 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: (((("gian hieu mo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("gian hieu mo snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( gian hieu mo snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("gian hieu mo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.