Perhaps you should try some spelling variations:
thieu tinh » trieu tinh, chieu tinh, thien tinh
nhung cong » dung cong, thong cong, hang cong
cong quang » luong quang, thong quang, duong quang
quang toan » quang tuan, quang tran, quang doan
hoc thieu » toc thieu, hoc hien
trinh cua » trinh luat, trinh quan, trinh luan
tinh cua » sinh cua, tinh chat, tranh 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: hoc thieu tinh - hanh ((trinh cua) OR (tinh cua)) nhung cong quang toan cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu tinh - hanh ((trinh cua) OR (tinh cua)) nhung cong quang toan cao".
• Adding a wildcard symbol may retrieve word variants: hoc thieu tinh - hanh ((trinh cua) OR (tinh cua)) nhung cong quang toan cao*.