Perhaps you should try some spelling variations:
cua triet » cua viet, va triet
cham truc » cau truc, nham thuc, pham thuc
su triet » su viet, su tien, ve triet
hang dau » hang va, hang tai
truc van » truc va, thuc van, truc ban
van hang » van khang, van hoang, van thang
nang mai » nang ma, nang tai, lang mai
va cham » va chat, va tham
hieu va » lieu va, hieu qua
mai hoi » mai khoi, dai hoi, lai hoi
te sach » toc sach
y nang » ky nang, ly nang, v nang
cua te » cua tu

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 y nang mai hoi. hieu va cham truc van hang dau ((cua te) or (((cua triet) OR (su triet))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y nang mai hoi. hieu va cham truc van hang dau ((cua te) OR (((cua triet) OR (su triet)))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y nang mai hoi. hieu va cham truc van hang dau ((cua te) or (((cua triet) OR (su triet))))".
• Adding a wildcard symbol may retrieve word variants: te sach y nang mai hoi. hieu va cham truc van hang dau ((cua te) or (((cua triet) OR (su triet))))*.