Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
hanh vai » hanh vi, hanh va, hanh tai
cau theo » cau thi, cau tao
sach ky » sach y, sach ty, sach kem
nang xa » nang x, lang xa, nang ma
van cac » van hac, van cau, van bac
vai cau » va cau, van cau, vai cac
sac ky » cac ky, sai ky
xuc va » tuc va, luc va, xac 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 ky) OR (sac ky)) nang xa hoi. hieu van cac ((xuc va) or (duc va)) hanh vai cau theo~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach ky) OR (sac ky)) nang xa hoi. hieu van cac ((xuc va) OR (duc va)) hanh vai cau theo*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach ky) OR (sac ky)) nang xa hoi. hieu van cac ((xuc va) or (duc va)) hanh vai cau theo*".