Perhaps you should try some spelling variations:
thieu tach » thien hach, chiet tach, chieu sach
hoc thieu » toc thieu, hoc hien
trinh cua » trinh luat, trinh quan, trinh luan
dung cong » dung trong
cong dang » cong dong, cong dan, cong dung
tinh cua » sinh cua, tinh chat, tranh cua
toan cao » toan ban
toan tap » toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thieu tach - hanh ((trinh cua) or (tinh cua)) dung cong dang ((toan cao) OR (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu tach - hanh ((trinh cua) OR (tinh cua)) dung cong dang ((toan cao) OR (toan tap)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu tach - hanh ((trinh cua) or (tinh cua)) dung cong dang ((toan cao) OR (toan tap))".
• Adding a wildcard symbol may retrieve word variants: hoc thieu tach - hanh ((trinh cua) or (tinh cua)) dung cong dang ((toan cao) OR (toan tap))*.