Perhaps you should try some spelling variations:
dang thai » dang thi, dang hai, dang khai
thai cua » than cua, tai cuc, tri cua
chat xuc » chat huu, cam xuc, chao xu
van chat » cao chat
hieu van » hieu va, thien van, lieu va
va dang » van dang, va nang, va lang
tu sach » thu sach, te sach, tu cach
tu tong » tu tuong, tu trong, tu dong
tu nong » tu dong, tu cong, tu tuong
su sach » so sach, vu sach
xuc va » duc va, tuc va, luc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu sach) or (su sach)) ((tu nong) OR (tu tong)) xa hoi. hieu van chat xuc va dang thai cua vat~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (su sach)) ((tu nong) OR (tu tong)) xa hoi. hieu van chat xuc va dang thai cua vat.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) or (su sach)) ((tu nong) OR (tu tong)) xa hoi. hieu van chat xuc va dang thai cua vat".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (su sach)) ((tu nong) OR (tu tong)) xa hoi. hieu van chat xuc va dang thai cua vat*.