Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
nha thuoc » nha nuoc, nhan thuc
thu sach » thuat sach, thuoc sach, thu hoach
nang tai » hang tai, tang tai, sang tai
thanh vi » hanh vi, thanh va, thanh ve
tu sach » su sach, te sach, tu cach
xuc van » duc van, luc van, vuc van
nha hoc » khoa hoc, nha nuoc, thai hoc
hieu ve » hieu va, hieu van
tai hoi » tai khoi, dai hoi, tai hai
y nang » ky nang, ly nang, v nang
ve cam » ve cham, ve cac, va cam

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 (thu sach)) y nang tai hoi. hieu ve cam xuc van thanh vi ((nha thuoc) OR (nha hoc))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (thu sach)) y nang tai hoi. hieu ve cam xuc van thanh vi ((nha thuoc) OR (nha hoc)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) or (thu sach)) y nang tai hoi. hieu ve cam xuc van thanh vi ((nha thuoc) OR (nha hoc))".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (thu sach)) y nang tai hoi. hieu ve cam xuc van thanh vi ((nha thuoc) OR (nha hoc))*.