Perhaps you should try some spelling variations:
thanh lap » thanh san, phan lap, thanh hai
ve triet » va trien, su triet
hanh lam » hanh kem, hanh va, dinh lam
tu sach » thu sach, su sach, te sach
hieu ve » hieu va, hieu van
cam tuc » cam xuc, cam tu, nam thuc
tuc va » thuc va, truc va, tuc xa
ve cam » ve cham, ve cac, va cam

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

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