Perhaps you should try some spelling variations:
sach thu » sach thue, sach thieu, sach tham
thu hanh » thuc hanh, thu thanh, thuy hanh
hanh lam » thanh lap, hanh kem, hanh va
ve triet » va trien, su triet
tu sach » thu sach, su sach, te sach
hanh xa » hanh va, hanh ma, hanh xu
hieu ve » hieu va, hieu van
truc va » thuc va, thuc vat, trung va
ve cam » ve cham, ve cac, va cam
xuc va » duc va, tuc va, luc va
lam ve » la ve, lam vu, nam ve

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 thu hanh xa hoi. hieu ve cam ((xuc va) or (truc va)) hanh lam ve triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach thu hanh xa hoi. hieu ve cam ((xuc va) OR (truc va)) hanh lam ve triet.
• Adding a wildcard symbol may retrieve word variants: tu sach thu hanh xa hoi. hieu ve cam ((xuc va) or (truc va)) hanh lam ve triet*.