Perhaps you should try some spelling variations:
thanh lap » thanh san, phan lap, thanh hai
cua triet » cua viet, su triet, va triet
hanh lai » hanh lam, hanh tai, thanh loi
hieu van » hieu va, thien van, lieu va
cac thuc » cach thuc, cac thu, can thuc
sach tai » sach bai, sach tham, sach dao
tu sach » thu sach, su sach, te sach
thuc va » thuc vat, thuc dan, thuc day
van cac » van hac, van cau, van bac
tai lan » tai lang, tai lanh, thi lan
lan xa » lang xa, dan xa, lan ha

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