Perhaps you should try some spelling variations:
cac thoi » cac toi, cac hop, cac tro
huong xa » huong va, duong xa, hmong xa
phat xuc » chat xuc, phat xuat, phap xu
xuc tuan » duc thuan, quoc tuan, xuan tuan
cac thu » cach thuc
hieu va » lieu va, hieu qua
doi cua » dai cua, hoi cua
vi cua » vai cua, di cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((cac thu) OR (cac thoi)) huong xa hoi. hieu va phat xuc tuan anh ((vi cua) or (doi cua)) triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((cac thu) OR (cac thoi)) huong xa hoi. hieu va phat xuc tuan anh ((vi cua) OR (doi cua)) triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((cac thu) OR (cac thoi)) huong xa hoi. hieu va phat xuc tuan anh ((vi cua) or (doi cua)) triet".
• Adding a wildcard symbol may retrieve word variants: hoc ((cac thu) OR (cac thoi)) huong xa hoi. hieu va phat xuc tuan anh ((vi cua) or (doi cua)) triet*.