Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
thi nang » thi cong, ki nang, thi hanh
pho cua » cho cua, kho cua, tho cua
te sach » toc sach
ty hang » ly hang, ty xang, thi hang
luc va » duc va, loc va
tuc va » thuc va, truc va, tuc xa
o hai » co hai, so hai, o lai
va co » vo co

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ((ty hang) or (thi nang)) o hai. lieu va co ((luc va) OR (tuc va)) thanh pho cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((ty hang) OR (thi nang)) o hai. lieu va co ((luc va) OR (tuc va)) thanh pho cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((ty hang) or (thi nang)) o hai. lieu va co ((luc va) OR (tuc va)) thanh pho cua triet".
• Adding a wildcard symbol may retrieve word variants: te sach ((ty hang) or (thi nang)) o hai. lieu va co ((luc va) OR (tuc va)) thanh pho cua triet*.