Perhaps you should try some spelling variations:
thanh van » thanh san, thanh toan, thanh phan
hieu van » hieu va, thien van, lieu va
thanh va » hanh va, thanh ha, thanh ve
van cam » van nam, van lam, van cau
sach tu » sach thu, cach tu, sach uu
sach ty » sach y, sach thu, xach tay
xuc va » duc va, tuc va, luc va
cua tu » cua tuc, cua su, cua cu
x hoi » xa hoi, o hoi, x ho

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

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