Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets"
"luong java java slippers" » "luong va java slippers", "luong java java slippery", "luong java java grippers"
"dung dat trac snippets" » "dung va trac snippets", "dung tai trac snippets", "dung sat trach snippets", "dung tap trac 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: (((("luong java java slippers") or ("dung dat trac snippets"))) or ("locating bugs code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("luong java java slippers") OR ("dung dat trac snippets"))) OR ("locating bugs code snippets")).
• Removing quotes may allow a broader search: (((( luong java java slippers ) or ( dung dat trac snippets ))) or ( locating bugs code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luong java java slippers") or ("dung dat trac snippets"))) or ("locating bugs code snippets"))*.