Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thi chung ve snippets" » "thi nhung ve snippets", "tai chung ve snippets", "thi chang ve snippets", "thi chung vi snippets", "thi chung cu snippets", "thi chung tu 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 chung ve 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 chung ve snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thi chung ve snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thi chung ve snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.