Perhaps you should try some spelling variations:
hanh tai » thanh tai, hang tai, han tai
tu sach » thu sach, su sach, te sach
va hanh » van hanh, va thanh, va danh
lo lang » o lang, so lang, le lang
lang xa » lang ha, dang xay, lang van
sach lo » sach dao, sach doi, sach hoi
cua tu » cua tuc, cua su, cua cu
luc va » duc va, tuc va, loc va
va cam » va cham, va cao, va cai

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 lo lang xa hoi. hieu ((va cam) or (va cac)) luc va hanh tai ((cua te) OR (cua tu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach lo lang xa hoi. hieu ((va cam) OR (va cac)) luc va hanh tai ((cua te) OR (cua tu)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach lo lang xa hoi. hieu ((va cam) or (va cac)) luc va hanh tai ((cua te) OR (cua tu))".
• Adding a wildcard symbol may retrieve word variants: tu sach lo lang xa hoi. hieu ((va cam) or (va cac)) luc va hanh tai ((cua te) OR (cua tu))*.