Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
chieu xanh » chieu sach, chieu sang, chieu tinh
thong cong » trong cong, tong cong, thong thong
tinh cua » trinh cua, sinh cua, tinh chat
cong dan » cong san, cong tan, huong dan
toan ban » van ban
sinh va » sinh vat, tinh va, dinh van

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo chieu xanh - hanh ((tinh cua) or (sinh va)) thong cong dan ((toan tap) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu xanh - hanh ((tinh cua) OR (sinh va)) thong cong dan ((toan tap) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: theo chieu xanh - hanh ((tinh cua) or (sinh va)) thong cong dan ((toan tap) or (toan ban))*.