Perhaps you should try some spelling variations:
khoan phap » khoan phai, khoa phau, han phap
phap chong » phap phong, phap cong, pham hong
cac khong » cac phong, cac thong, cat khong
khong khi » khong he
khi thong » khi phong, khi tuong, thi thuong
san thai » sac thai, ban thai, van thai
thai hoc » dai hoc, bai hoc, thai do
thu sanh » thu canh, thu sinh, thu anh
sanh vai » sanh va, sinh vat, hanh vi
thu san » thuy san, thu ban, phu san
hoc cac » hoc cao
tro cac » tho cac, tao cac, tri cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( thu san thai hoc cac khong khi thong ) or ( thu sanh vai tro cac khoan phap chong ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( thu san thai hoc cac khong khi thong ) OR ( thu sanh vai tro cac khoan phap chong )).
• Adding a wildcard symbol may retrieve word variants: (( thu san thai hoc cac khong khi thong ) or ( thu sanh vai tro cac khoan phap chong ))*.