Perhaps you should try some spelling variations:
theo khien » theo chieu, tieu khien
khien bang » phien ban, khien dong
thong cong » trong cong, tong cong, thong thong
cong tinh » cong trinh, cong vinh, long tinh
tang cua » mang cua, tang luan, thong cua
hang cua » mang cua, hang ca, huong cua
toan cao » toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo khien bang - hanh ((tang cua) or (hang cua)) thong cong tinh ((toan cao) or (van ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo khien bang - hanh ((tang cua) OR (hang cua)) thong cong tinh ((toan cao) OR (van ban)).
• Adding a wildcard symbol may retrieve word variants: theo khien bang - hanh ((tang cua) or (hang cua)) thong cong tinh ((toan cao) or (van ban))*.