Perhaps you should try some spelling variations:
thong cong » trong cong, tong cong, thong thong
theo diep » theo tieu
trinh van » trinh quan, trinh toan, dinh van
trinh han » trinh quan
cong dan » cong san, cong tan, huong dan
toan tai » toan tap, doanh tai, toan ban
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 diep tinh - hanh ((trinh van) OR (trinh han)) thong cong dan ((toan tai) or (toan cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo diep tinh - hanh ((trinh van) OR (trinh han)) thong cong dan ((toan tai) OR (toan cao))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo diep tinh - hanh ((trinh van) OR (trinh han)) thong cong dan ((toan tai) or (toan cao))*".