Perhaps you should try some spelling variations:
dan thanh » dang thanh, danh thanh, ban thanh
thanh cha » thanh ha, thanh nha, thanh phan
hoc nganh » hoc nhanh
thuc dan » thuc hanh, hoc dan, thuc vat
nganh ky » nganh y, nganh xay, hanh ky
cha khi » chat khi, chap khe, cua khoi
tu hoc » te hoc
ky khi » ky thi, ly khi

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( thuc dan thanh cha khi đong luc ) or ( tu hoc nganh ky khi đong luc ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( thuc dan thanh cha khi đong luc ) OR ( tu hoc nganh ky khi đong luc )).
• Adding a wildcard symbol may retrieve word variants: (( thuc dan thanh cha khi đong luc ) or ( tu hoc nganh ky khi đong luc ))*.