Perhaps you should try some spelling variations:
thien van » thi van
nang tai » hang tai, tang tai, nang cao
sang tai » hang tai, sang tao, tang tai
hanh san » thanh san, khach san, thanh son
va triet » va thiet, va trien, ve triet
vu sach » vu bach, su sach, vu khach
sach ky » sac ky, sach y, sach ty
van cam » van nam, van lam, van cau
cam luc » cam xuc, cau luc
va hanh » van hanh, va thanh, va danh
luc va » duc va, tuc va, loc va
san va » san van, ban va, dan va

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu sach ky ((nang tai) or (sang tai)) khoa. thien van cam luc va hanh san va triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach ky ((nang tai) OR (sang tai)) khoa. thien van cam luc va hanh san va triet.
• Adding a wildcard symbol may retrieve word variants: vu sach ky ((nang tai) or (sang tai)) khoa. thien van cam luc va hanh san va triet*.