Perhaps you should try some spelling variations:
khong dong » khong dung, khong mong, phong dong
luan khong » luan phong, luan phuong, luong khong
hanh tang » hanh trang, anh tang, hanh mang
tang luan » dung luan
dong sinh » duong sinh, dong kinh, dang sinh
theo thu » theo chu, theo tu, theo tieu
thu bang » thu ban, thu hang, chu bang
sinh van » sinh vat, dinh van, sinh va

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo thu bang - hanh tang luan khong dong sinh van ban~.
• Adding a wildcard symbol may retrieve word variants: theo thu bang - hanh tang luan khong dong sinh van ban*.