Perhaps you should try some spelling variations:
real liang » real long, real line
shang hai » shang kai, dang hai, chang ha
oil real » oil coal, oil rent
liang li » ling li, qiang li, liang wei
wong yue » wang yue, hong yu
ogn oil » corn oil, oman oil
wang » wing, wan, lang
yan » yang, ryan

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: wang yan ogn oil real liang li ((shang hai) or (wong yue)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yan ogn oil real liang li ((shang hai) OR (wong yue)) ;.
• Adding a wildcard symbol may retrieve word variants: wang yan ogn oil real liang li ((shang hai) or (wong yue)) ;*.