Perhaps you should try some spelling variations:
phap chung » phap chong, phan chung, phap cung
chung hoc » trung hoc, dung hoc, hung hoa
cuu cong » cua cong, thu cong, cac cong
hoc phap » hoc phan, hoc phat, hoc pho
phan tai » pham tai, nhan tai, phan thi
tu sinh » thu sinh, tuc sinh, tu minh
va phan » van phan, va phat, va phap
hoc xa » hoc ma
tinh » dinh, minh, kinh

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sinh hoc tap, nghien ((cuu (tinh OR trinh)) or (cuu cong)) hoc phap chung hoc xa hoi va phan tai~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sinh hoc tap, nghien ((cuu (tinh OR trinh)) OR (cuu cong)) hoc phap chung hoc xa hoi va phan tai.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sinh hoc tap, nghien ((cuu (tinh OR trinh)) or (cuu cong)) hoc phap chung hoc xa hoi va phan tai".
• Adding a wildcard symbol may retrieve word variants: tu sinh hoc tap, nghien ((cuu (tinh OR trinh)) or (cuu cong)) hoc phap chung hoc xa hoi va phan tai*.