Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
sach thi » sach thu, sach tai, sach thieu
thi hanh » thi thanh
va triet » va thiet, va trien, ve triet
hanh xa » hanh va, hanh ma, hanh xu
hieu va » lieu va, hieu qua
truc va » thuc vat, trung va
thuc va » thuc vat, thuc dan, thuc day
dan lam » van lam, dan lap, dan nam
va nam » van nam, ha nam, va nay
lam va » nam va, dam va, lam ha

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach thi hanh xa hoi. hieu va nam ((truc va) OR (thuc va)) dan lam va triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach thi hanh xa hoi. hieu va nam ((truc va) OR (thuc va)) dan lam va triet".
• Adding a wildcard symbol may retrieve word variants: thu sach thi hanh xa hoi. hieu va nam ((truc va) OR (thuc va)) dan lam va triet*.