Perhaps you should try some spelling variations:
thieu khang » chieu khong, thieu quang
thanh tuong » thanh thuong, thanh tung, thanh huong
nhung huong » nhung phuong, nhung tuong, nhung cong
thieu sang » chieu sang, thieu quang, hieu lang
tuong dap » tuong dan, tuong dao, tuong dai
dap nhung » vap nhung, va nhung, dap ung
dan phan » doan phan, dan chan, van phan

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((thieu sang) or (thieu khang)) - thanh tuong dap nhung huong dan phan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu sang) OR (thieu khang)) - thanh tuong dap nhung huong dan phan tu.
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu sang) or (thieu khang)) - thanh tuong dap nhung huong dan phan tu*.