Perhaps you should try some spelling variations:
khuong tinh » chuong trinh, phuong trinh, phuong binh
dung khuong » dung thuong, dung phuong, dung huong
theo lieu » theo tieu, theo chieu, theo yeu
lieu tinh » trieu tinh, diep tinh, bien tinh
toan cau » toan cao, toan ban, toan tap
manh va » hanh va, anh va, lanh va
minh va » tinh va, sinh va, sinh vat

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

• If you are trying to use Boolean operators, they must be ALL CAPS: theo lieu tinh - canh ((manh va) OR (minh va)) dung khuong tinh ((toan cau) OR (van ban))~.
• Adding a wildcard symbol may retrieve word variants: theo lieu tinh - canh ((manh va) or (minh va)) dung khuong tinh ((toan cau) or (van ban))*.