Perhaps you should try some spelling variations:
trong tuong » trong thuong, trong luong, tuong tuong
luan trong » quan trong, luat trong, luan tuong
thieu tinh » trieu tinh, chieu tinh, thien tinh
hoc thieu » toc thieu, hoc hien
hanh tung » thanh tung, manh tung, hanh dung
hanh mang » nhanh mang, hanh trang, nhanh lang
tuong han » thuong han, tuong phan, tuong dan
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 tinh - ((hanh tung) or (hanh mang)) luan trong tuong han ((toan cao) OR (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu tinh - ((hanh tung) OR (hanh mang)) luan trong tuong han ((toan cao) OR (toan tap)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu tinh - ((hanh tung) or (hanh mang)) luan trong tuong han ((toan cao) OR (toan tap))".
• Adding a wildcard symbol may retrieve word variants: hoc thieu tinh - ((hanh tung) or (hanh mang)) luan trong tuong han ((toan cao) OR (toan tap))*.