Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tac dau cham snippets" » "tac cau cham snippets", "tac dau thau snippets", "tac va cham snippets", "tac da cham snippets", "tac dao cham snippets", "thau dau cham 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 dau cham 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 dau cham snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tac dau cham snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tac dau cham snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.