Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
hanh tai » thanh tai, hang tai, han tai
hanh tri » thanh tri, hanh trinh, hanh triet
sach ky » sac ky, sach y, sach kem
van cam » van nam, van lam, van cau
lang xa » lang ha, dang xay, lang van
sach ty » sach y, sach tu, sach thu
xuc va » duc va, tuc va, luc va
cua te » cua tu

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

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