Perhaps you should try some spelling variations:
khong cang » thong cong, hong bang, khong dung
thi chieu » thi chien, thi hieu, theo chieu
trinh cua » trinh luat, trinh quan, trinh luan
theo chu » theo chieu, cho chu, chao chu
tinh cua » sinh cua, tinh chat, tranh cua
cang san » cong san, cang sau, nang sang
san toan » van toan, dan toan, manh toan
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((theo chu) or (thi chieu)) xanh - hanh ((tinh cua) or (trinh cua)) khong cang san toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chu) OR (thi chieu)) xanh - hanh ((tinh cua) OR (trinh cua)) khong cang san toan ban.
• Adding a wildcard symbol may retrieve word variants: ((theo chu) or (thi chieu)) xanh - hanh ((tinh cua) or (trinh cua)) khong cang san toan ban*.