Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
chat luc » chat xuc, chat lua, nhan luc
te sach » toc sach
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
va chat » van chat, va phat, cao chat
va doan » va doanh, van doan, va dan
cua tre » cua te, cuu tre, dua tren
sach v » sach va, sach y, sach 2
v nang » va nang, vu nang, van nang
luc va » duc va, tuc va, loc va

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 v nang xa hoi. hieu va chat luc va doan va ((cua tre) OR (cua triet))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach v nang xa hoi. hieu va chat luc va doan va ((cua tre) OR (cua triet))".
• Adding a wildcard symbol may retrieve word variants: te sach v nang xa hoi. hieu va chat luc va doan va ((cua tre) OR (cua triet))*.