Perhaps you should try some spelling variations:
thong cong » trong cong, tong cong, thong thong
theo dieu » theo tieu, theo chieu, thuoc dieu
tang luan » dung luan
cong hach » cong sach, cong thanh, cong khanh
toan tai » toan tap, doanh tai, toan ban
toan cao » toan ban, toan tap
hang ca » hang va, nang cao, hang tai

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

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