Perhaps you should try some spelling variations:
ve triet » va trien, su triet
ky trang » ke trang, ky tang, ky nang
ky trong » ly trong, ke trong, cay trong
hieu ve » hieu va, hieu van
hanh ve » hanh vi, hanh va, hanh kem
te sai » te tai, te bai, te lai
tuc va » thuc va, truc va, tuc xa
ve cam » ve cham, ve cac, va cam
ve ve » de ve, va ve, ke ve

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sai ((ky trang) OR (ky trong)) xa hoi. hieu ve cam ((tuc va) or (hoc dan)) hanh ve ve triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sai ((ky trang) OR (ky trong)) xa hoi. hieu ve cam ((tuc va) OR (hoc dan)) hanh ve ve triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sai ((ky trang) OR (ky trong)) xa hoi. hieu ve cam ((tuc va) or (hoc dan)) hanh ve ve triet".
• Adding a wildcard symbol may retrieve word variants: te sai ((ky trang) OR (ky trong)) xa hoi. hieu ve cam ((tuc va) or (hoc dan)) hanh ve ve triet*.