Perhaps you should try some spelling variations:
hoc chieu » hoc thieu, ho chieu, hoc hien
thinh dan » thinh doan, trinh dan, hinh dan
dong dung » dong duong, duong dung, cong dung
lap dong » lao dong, lam dong, lai dong
dung dat » dung va, dung tai
dat phan » data phan, dam phan, sat phan
dan lap » phan lap, dan luan

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc chieu) or (toc thieu)) sang - thinh dan lap dong dung dat phan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc chieu) OR (toc thieu)) sang - thinh dan lap dong dung dat phan tu.
• Adding a wildcard symbol may retrieve word variants: ((hoc chieu) or (toc thieu)) sang - thinh dan lap dong dung dat phan tu*.