Perhaps you should try some spelling variations:
thanh gian » thanh giang, thach giang, thanh san
su triet » su viet, su tien, ve triet
nang mai » nang ma, lang mai, nang cai
nang tai » hang tai, tang tai, sang tai
gian su » gian suu, gian xu, giao su
tuc gia » tac gia, duc gia, toc gia
su sach » so sach, vu sach
va cam » va cham, va cac, va cao
ve cam » ve cham, ve cac, ve cai

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 y ((nang mai) OR (nang tai)) hoi. hieu ((ve cam) or (va cam)) tuc gia thanh gian su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach y ((nang mai) OR (nang tai)) hoi. hieu ((ve cam) OR (va cam)) tuc gia thanh gian su triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach y ((nang mai) OR (nang tai)) hoi. hieu ((ve cam) or (va cam)) tuc gia thanh gian su triet".
• Adding a wildcard symbol may retrieve word variants: su sach y ((nang mai) OR (nang tai)) hoi. hieu ((ve cam) or (va cam)) tuc gia thanh gian su triet*.