Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
thanh vi » hanh vi, thanh va, thanh ve
lang xa » lang ha, dang xay, lang van
hieu ve » hieu va, hieu van
cam duc » cam xuc, cao duc, pham duc
duc van » duc va, duc tan, duc manh
cua te » cua tu
ve cam » ve cham, ve cac, va cam
sac ky » sai ky
cua su » qua su

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc ((sac ky) OR (cac ky)) lang xa hoi. hieu ve cam duc van thanh vi ((cua te) or (cua su))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc ((sac ky) OR (cac ky)) lang xa hoi. hieu ve cam duc van thanh vi ((cua te) OR (cua su)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc ((sac ky) OR (cac ky)) lang xa hoi. hieu ve cam duc van thanh vi ((cua te) or (cua su))".
• Adding a wildcard symbol may retrieve word variants: toc ((sac ky) OR (cac ky)) lang xa hoi. hieu ve cam duc van thanh vi ((cua te) or (cua su))*.