Perhaps you should try some spelling variations:
thanh vai » thanh hai, thanh van, thanh tai
va thanh » gia thanh, ban thanh, va tinh
lang van » dang van, tang van, hoang van
hieu ve » hieu va, hieu van
vai cua » dai cua, hai cua, lai cua
cac toc » cac toi, cac nuoc, cac thoi
toc va » hoc va, toc ta, tuc va
ve cac » va cac, vien cac
sac ky » sai ky
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 ((sac ky) OR (cac ky)) ((nang x) or (lang van)) hoi. hieu ve cac toc va thanh vai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sac ky) OR (cac ky)) ((nang x) OR (lang van)) hoi. hieu ve cac toc va thanh vai cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((sac ky) OR (cac ky)) ((nang x) or (lang van)) hoi. hieu ve cac toc va thanh vai cua te".
• Adding a wildcard symbol may retrieve word variants: te ((sac ky) OR (cac ky)) ((nang x) or (lang van)) hoi. hieu ve cac toc va thanh vai cua te*.