Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
lam duoc » nam duoc, luat duoc, lam thuoc
va hanh » van hanh, va thanh, va danh
lam loc » lam ngoc
sach ky » sach y, sach ty, sach kem
lang xa » lang ha, dang xay, lang van
sac ky » cac ky, sai ky
vi cua » vai cua, di cua
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: su ((sach ky) OR (sac ky)) lang xa hoi. hieu van ((lam loc) or (lam duoc)) va hanh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su ((sach ky) OR (sac ky)) lang xa hoi. hieu van ((lam loc) OR (lam duoc)) va hanh vi cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su ((sach ky) OR (sac ky)) lang xa hoi. hieu van ((lam loc) or (lam duoc)) va hanh vi cua te".
• Adding a wildcard symbol may retrieve word variants: su ((sach ky) OR (sac ky)) lang xa hoi. hieu van ((lam loc) or (lam duoc)) va hanh vi cua te*.