Perhaps you should try some spelling variations:
ban hanh » ban hang
thai cua » than cua, tai cuc, tri cua
sach ty » sach y, sach tu, sach thu
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
xuc ban » duc ban, cuc ban, quoc ban
hai cua » dai cua, hoi cua, lai cua
sac ky » cac ky, sai ky
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 ty) or (sac ky)) nang xa hoi. hieu ve cam xuc ban hanh ((hai cua) OR (thai cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach ty) OR (sac ky)) nang xa hoi. hieu ve cam xuc ban hanh ((hai cua) OR (thai cua)) tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach ty) or (sac ky)) nang xa hoi. hieu ve cam xuc ban hanh ((hai cua) OR (thai cua)) tre".
• Adding a wildcard symbol may retrieve word variants: tu ((sach ty) or (sac ky)) nang xa hoi. hieu ve cam xuc ban hanh ((hai cua) OR (thai cua)) tre*.