Perhaps you should try some spelling variations:
hanh vai » hanh vi, hanh va, hanh van
thu bang » thu ban, thu hang, chu bang
hieu van » hieu va, thien van, lieu va
van pham » san pham, van phan, van phat
pham huu » pham duc, pham duy, phan huy
hanh tai » thanh tai, hang tai, han tai
sach thu » sach thue, sach thieu, sach tham
so sach » so sanh, bo sach, co sach
cua tuc » cua duc, cua thuoc, luat tuc
bang ma » bang may, tang ma, ban ma
huu va » cuu va, tuu va
cua tu » cua su, cua cu, cua te

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sach thu bang ma hoa. hieu van pham huu va ((hanh vai) or (hanh tai)) ((cua tu) OR (cua tuc))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach thu bang ma hoa. hieu van pham huu va ((hanh vai) OR (hanh tai)) ((cua tu) OR (cua tuc)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach thu bang ma hoa. hieu van pham huu va ((hanh vai) or (hanh tai)) ((cua tu) OR (cua tuc))".
• Adding a wildcard symbol may retrieve word variants: so sach thu bang ma hoa. hieu van pham huu va ((hanh vai) or (hanh tai)) ((cua tu) OR (cua tuc))*.