Perhaps you should try some spelling variations:
hanh truong » hanh trong, anh truong, manh truong
cong quang » luong quang, thong quang, duong quang
hoc thieu » toc thieu, hoc hien
truong va » truong dai, truong cao, truong dao
dung cong » dung trong
hoc tieu » hoc dieu, hoc sieu, hoc tieng
va dung » van dung, va duong, vat dung
thai do » thay doi

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc tieu) or (hoc thieu)) tinh - hanh truong va dung cong quang ((thai do) OR (thai den))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc tieu) OR (hoc thieu)) tinh - hanh truong va dung cong quang ((thai do) OR (thai den))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc tieu) or (hoc thieu)) tinh - hanh truong va dung cong quang ((thai do) OR (thai den))*".