Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tac vang can snippets" » "cac van can snippets", "tac dung can snippets", "tac dong can snippets", "tac nang can snippets", "tac vang van snippets", "tac nang cao 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: (((("tac vang can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tac vang can snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tac vang can snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tac vang can snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.